Update README.md

Author: pgalko

README.md

@@ -21,13 +21,13 @@ There is a few alternative usage scenarios.
 * **Meteostat** - Current and historical weather observations
 
 ## How is the user data accessed and downloaded ?
-The tool's front end runs on an Apache web-server using Flask and Python in the background (Can optionally be run using Flask inbuilt web server). The process starts with user selecting the data sources and the types of data that he would like to download. He will then provide login credentials for the selected data sources. Next the user chooses from available options like destination DB server, date ranges, archiving of the original files, clearing of previously downloaded data, enabling periodic autosynch etc. The user will be required to specify the date ranges (or at lest the start date) before the download can proceed. If the option to download Glimp or LibreView BG data is selected, the user will have to first share the Glimp or LibreView archive folder located in his Dropbox and input the generated link to the Glimp/LibreView download section. Similar procedure applies if user wants to download Mind Monitor EEG data. Finally user would submit the completed request to the download service and wait for the download to complete. The download service is a type of web-scraper using the supplied credentials to log in to the user's account. Once logged in, it browses to download pages and iterates through available downloads. Finally it downloads the retrieved data to the server in the FIT,XML or CSV formats.
+The tool's front end runs on an Apache web-server using Flask and Python in the background (Can optionally be run using Flask inbuilt web server). The process starts with user selecting the data sources and the types of data that he would like to download. He will then provide login credentials for the selected data sources. Next the user chooses from available options like destination DB server, date ranges, archiving of the original files, clearing of previously downloaded data, enabling periodic autosynch etc. The user will be required to specify the date ranges (or at lest the start date) before the download can proceed. If the option to download Glimp or LibreView BG data is selected, the user will have to first share the Glimp or LibreView archive folder located in his Dropbox and input the generated link to the Glimp/LibreView download section. Similar procedure applies if user wants to download Mind Monitor EEG data. Finally user would submit the completed request to the download service and wait for the download to complete. The download service is a combination of web-scraper using the supplied credentials to log in to the user's accounts(Garmin,MFP,Diasend) and an API client(Oura). Once logged in, it browses to download pages and iterates through available downloads, or accesses the user data via vendor's API. Finally it downloads the retrieved data to the server in the FIT,XML,JSON or CSV formats.
 
 *Select Datasouces:*
 ![](images/DataSourcesGUI_new.PNG)
 
 ## Where and How is the user data stored ?
-The user data files are first downloaded and stored to the webserver's file system as flat files as described above. After each of the files is successfully downloaded and saved, the service parses and cleans the content which then gets formated and inserted in to the PostgreSQL database hosted either on this server or on the user's own DB server (the user will need to provide hostname/IP address, username, password). If user chooses to store his data on this DB server he will have his own database that he has got full and unrestricted access to. Once the user submits the download request providing valid credentials he will be able to retrieve the database access details via "View DB info..." link on the download page. The Datamodel diagram outlining the DB layout/data structure can be viewed here: **[Preview Datamodel...](https://www.athletedata.net/datamodel_preview?gc=0&wel=0&mfp=0&dia=0)** Upon successful DB insert the original export files are removed from the file system (optionally admins can enable preservation of the files after db insert.
+The user data files are first downloaded and stored to the webserver's file system as flat files or converted to pandas dataframes. After each of the files is successfully downloaded and saved, the service parses and cleans the content which then gets formated and inserted in to the PostgreSQL database hosted either on this server or on the user's own DB server (the user will need to provide hostname/IP address, username, password). If user chooses to store his data on this DB server he will have his own database that he has got full and unrestricted access to. Once the user submits the download request providing valid credentials he will be able to retrieve the database access details via "View DB info..." link on the download page. The Datamodel diagram outlining the DB layout/data structure can be viewed here: **[Preview Datamodel...](https://www.athletedata.net/datamodel_preview?gc=0&wel=0&mfp=0&dia=0)** Upon successful DB insert the original export files are removed from the file system (optionally admins can enable preservation of the files after db insert.
 
 *Select DB Host:*
 ![](images/SelectDBserverGUI.PNG)
@@ -48,7 +48,7 @@ The service provides an option for integration with Dropbox (https://www.dropbox
 ![](images/ArchiveAutosynchGUI.PNG)
 
 ## How do users revoke access and delete all downloaded data ?
-This service provides an ability for each user to revoke all access to his GarminConnect,MFP and Diasend accounts from this service and/or delete all already downloaded data. This option can be accessed from the download page by simply providing a valid GarminConnect credentials and choosing the "Delete All data and Exit without re-downloading" option from the "Housekeeping" section. Upon submitting the request, all user data including any encrypted usernames and passwords stored in the DB will be deleted, and autosynch if previously enabled will be canceled. This will not affect the data archived to users's Dropbox and if desired the user will need to delete those manually. If the user only want to use this service as a "once off" perhaps for data archiving purposes, he can download all his data with "archive all data to Dropbox" option enabled and then delete all data from the db/web-server.
+This service provides an ability for each user to revoke all access to his GarminConnect,MFP,Diasend and Oura accounts from this service and/or delete all already downloaded data. This option can be accessed from the download page by simply providing a valid logon credentials and choosing the "Delete All data and Exit without re-downloading" option from the "Housekeeping" section. Upon submitting the request, all user data including any encrypted usernames and passwords stored in the DB will be deleted, and autosynch if previously enabled will be canceled. This will not affect the data archived to users's Dropbox and if desired the user will need to delete those manually. If the user only want to use this service as a "once off" perhaps for data archiving purposes, he can download all his data with "archive all data to Dropbox" option enabled and then delete all data from the db/web-server.
 
 *Data Delete:*
 ![](images/HouseKeepingGUI.PNG)
@@ -59,7 +59,7 @@ After changing the GarminConnect, MFP or Diasend password user will simply need
 ## How secure are user credentials and data ?
 This tool requires user's login credentials for GarminConnect and optionally MFP and Diasend, to be able to access and download the user data generated by these services. These credentials are not stored anywhere on the system or DB if the download/sync is manual or once-off and the user does not require autosynch. In case that the autosynch option is selected, the user credentials for the above services are encrypted using AES-256 encryption and stored in the db for this tool to be able to log in automatically, and retrieve data without user's input on periodic bases. If user decides to revoke access to his accounts as explained above, all stored credentials are removed from the database and autosynch is disabled. Each user has his own password protected database not shared with other users. The downloaded data are stored in db tables in clear text.
 
-*This tool is a one man's hobby project to cater for his own needs and you are welcome to use it. I have taken every precaution known to me to secure the user data and protect his privacy... but I don't know , what I don't know... and can not guarantee that I have not missed something.*
+*This tool is a one man's hobby project to cater for his own needs and you are welcome to use it. I have taken every precaution known to me to secure the user data and protect his/her privacy... but I don't know , what I don't know... and can not guarantee that I have not missed something.*
 
 ## How to Install (Windows - self-hosted,private)
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