new shell resource

mattmakai · mattmakai · commit 430272b66e4f · 2020-04-25T10:16:15.000-04:00
diff --git a/content/pages/02-development-environments/07-shells.markdown b/content/pages/02-development-environments/07-shells.markdown
@@ -45,3 +45,7 @@ environment named `fullstackpython` within the macOS Terminal application.
   little tool that shows how input and arguments in the shell break
   down and are interpreted by commands. The data is pulled from the 
   [Ubuntu](/ubuntu.html) `man` pages.
+
+* [Shell productivity tips and tricks](https://blog.balthazar-rouberol.com/shell-productivity-tips-and-tricks.html)
+  covers how to increase your effectiveness on the shell across topics such as
+  navigating history, autocompletion, and pattern matching.
diff --git a/content/pages/03-data/08-django-orm.markdown b/content/pages/03-data/08-django-orm.markdown
@@ -39,6 +39,10 @@ that have been added throughout the project's history.
   [Django Silk](http://mtford.co.uk/blog/2/) is another inspection tool and
   has capabilities to do more than just SQL inspection.
 
+* [Django QuerySet Examples (with SQL code included)](https://davit.tech/django-queryset-examples/)
+  teaches how QuerySets work and shows the corresponding SQL code behind the
+  Python code you write to use the ORM.
+
 * [Making a specific Django app faster](http://reinout.vanrees.org/weblog/2014/05/06/making-faster.html)
   is a Django performance blog post with some tips on measuring performance
   and optimizing based on the measured results.
diff --git a/content/pages/04-web-development/52-twilio.markdown b/content/pages/04-web-development/52-twilio.markdown
@@ -92,6 +92,9 @@ for fellow developers.
   walks through using the Python runtime on [AWS Lambda](/aws-lambda.html) 
   and Twilio's APIs for validating phone number information.
 
+* [Receive Flask Error Alerts by Email with Twilio SendGrid](https://www.twilio.com/blog/receive-flask-error-alerts-email-twilio-sendgrid)
+  shows how to use Twilio to add email error reports to [Flask](/flask.html)
+  web applications.
 
 * [Google Cloud recommends developers use Twilio](https://cloud.google.com/appengine/docs/standard/python/sms/twilio)
   for communications in their apps and provides a short walkthrough for
