Fix: Fixed broken links in deploy/tutorials page (#1291)

* Fixed broken links in deploy/tutorials page

Some links for deploying on AWS EC2 and azure were broken, so I added links from the towards data science archive on medium. The content is the same but the links are working now

* Remove links blocked by paywall

---------

Co-authored-by: Debbie Matthews <debbie.matthews@snowflake.com>

Author: Riddhimaan-Senapati

content/deploy/tutorials/_index.md

@@ -35,8 +35,6 @@ This sections contains step-by-step guides on how to deploy Streamlit apps to va
 
 While we work on official Streamlit deployment guides for other hosting providers, here are some user-submitted tutorials for different cloud services:
 
-- [How to Deploy Streamlit to a Free **Amazon EC2** instance](https://towardsdatascience.com/how-to-deploy-a-streamlit-app-using-an-amazon-free-ec2-instance-416a41f69dc3), by Rahul Agarwal.
-- [Host Streamlit on **Azure**](https://towardsdatascience.com/deploying-a-streamlit-web-app-with-azure-app-service-1f09a2159743), by Richard Peterson.
 - [How to deploy Streamlit apps to **Google App Engine**](https://dev.to/whitphx/how-to-deploy-streamlit-apps-to-google-app-engine-407o), by [Yuichiro Tachibana (Tsuchiya)](https://discuss.streamlit.io/u/whitphx/summary).
 - [Host Streamlit on **Heroku**](https://towardsdatascience.com/quickly-build-and-deploy-an-application-with-streamlit-988ca08c7e83), by Maarten Grootendorst.
 - [Deploy Streamlit on **Ploomber Cloud**](https://docs.cloud.ploomber.io/en/latest/apps/streamlit.html), by Ido Michael.