Add File System Example Guides (#10)

* File System
- Read and display HTML file from SD card
- Simple applications with SD card

* bak
- delete file system backup files

* static
- add 'image04' for read and display html file from sd card example guide

Author: kevinlookl

bak/Example_Guides/File System - Read and display HTML file from SD card/File System - Simple applications with SD card.rst

@@ -0,0 +1,66 @@
+Read and display HTML file from SD card
+=======================================
+
+.. contents::
+  :local:
+  :depth: 2
+
+Materials
+---------
+
+-  `AMB82-mini <https://www.amebaiot.com/en/where-to-buy-link/#buy_amb82_mini>`_ x 1
+
+-  MicroSD card
+
+Example
+-------
+
+Procedure
+~~~~~~~~~
+
+Using a card reader, connect the SD card to a computer and copy the HTML
+file into the SD card. Take note to place the file in the root directory
+and not in any folder. The HTML sample file can be downloaded at
+https://github.com/ambiot/ambpro2_arduino/tree/dev/Ameba_misc/Example_Samples/Web_test.html.
+
+|image01|
+
+Then insert the MicroSD card into the SD card slot of the AMB82 MINI
+board.
+
+Open the example, "Files" -> "Examples" -> "AmebaFileSystem" ->
+"ReadHTMLFile"
+
+In the sample code, modify "ssid" to the WiFi SSID to be connected to
+and "pass" to the network password.
+
+|image02|
+
+Upload the code and press the reset button on the board once the upload
+is finished.
+
+Wait for the board to connect to WiFi. When the connection is
+established, the message "To see this page in action, open a browser to
+http://xxx.xxx.xxx.xxx" will be printed in the serial monitor.
+
+|image03|
+
+Next, on a device connected to the same network, use a web browser to
+open the address provided in the serial monitor. The following web page
+will be displayed.
+
+|image04|
+
+.. |image01| image:: ../../../_static/amebapro2/Example_Guides/File_System/Read_and_display_HTML_file_from_SD_card/image01.png
+   :width: 694 px
+   :height: 440 px
+.. |image02| image:: ../../../_static/amebapro2/Example_Guides/File_System/Read_and_display_HTML_file_from_SD_card/image02.png
+   :width: 568 px
+   :height: 677 px
+.. |image03| image:: ../../../_static/amebapro2/Example_Guides/File_System/Read_and_display_HTML_file_from_SD_card/image03.png
+   :width: 667 px
+   :height: 444 px
+.. |image04| image:: ../../../_static/amebapro2/Example_Guides/File_System/Read_and_display_HTML_file_from_SD_card/image04.png
+   :width: 3895 px
+   :height: 1235 px
+   :scale: 30%