Doc: Note new tutorials that need to be documented

Author: GitauHarrison

README.md

@@ -21,7 +21,7 @@ This repository holds all the notes of the things I have learnt. Anyone else can
 17. [Simple 2FA in flask](two_factor_authentication/2fa_flask.md)
 18. [Enable/disable 2fa in flask using Twilio Verify API](two_factor_authentication/twilio_verify_2fa.md)
 19. [Push Notication 2fa in flask using Python](two_factor_authentication/twilio_authy.md)
-20. [How to send emails from your flask app using Twilio SendGrid](twilio_sendgrid.md)
+20. [How to send emails from your flask app using Twilio SendGrid](twilio_sendgrid/overview.md)
 21. [Third party authentication in Flask](two_factor_authentication/third_party_auth.md)
 22. [Live Traffic WhatsApp chatbot](/whatsapp_chatbots/live_traffic_whatsapp_chatbot.md)
 23. [Beautiful flask table](flask_tables.md)
@@ -33,6 +33,10 @@ This repository holds all the notes of the things I have learnt. Anyone else can
 29. [Flask popover](flask_popover.md)
 30. [Private messaging and user notifications in Flask](flask_popover/user_notifications.md)
 31. [Understanding HTTP Life Cycle](http_life_cycle.md)
+32. [SSH Authentication](linode/ssh_key_based_authentication.md)
+33. [Cron Jobs in Flask](cron_jobs_in_flask.md)
+34. [Add Google Analytics to your Flask App](google_analytics.md)
+35. [Integrate ChartJS in Flask](chartjs.md)
 
 I also make a note of some of the cool projects I have built or I have been involved in. You can find these projects below. Some may be in progess while others may be completed:
 

chartjs.md

@@ -0,0 +1 @@
+# Visualize Data in Your Flask App Using ChartJS

cron_jobs_in_flask.md

@@ -0,0 +1 @@
+# Cron Jobs In Flask

google_analytics.md

@@ -0,0 +1 @@
+# Integrate Google Analytics to Your Flask App

linode/secure_domain_with_ssl.md

@@ -254,7 +254,7 @@ This certificate typically lasts for around 90 days and after that I need to ren
     - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
     ```
 
-This is a simulated renewal. To automate this renewal process, I will run a cronjob. I will open my crontab file using nano:
+This is a simulated renewal. To automate this renewal process, I will run a [cronjob](/cron_jobs_in_flask.md). I will open my crontab file using nano:
 
 
 ```python