Address feedback.

Author: kurtisvg

cloud-sql/mysql/sqlalchemy/README.md

@@ -30,7 +30,7 @@ secure solution such as [Cloud KMS](https://cloud.google.com/kms/) to help keep
 
 ## Running locally
 
-To run this application locally, download and install the cloud_sql_proxy by
+To run this application locally, download and install the `cloud_sql_proxy` by
 following the instructions [here](https://cloud.google.com/sql/docs/mysql/sql-proxy#install).
 
 Once the proxy is ready, use the following command to start the proxy in the
@@ -58,7 +58,7 @@ Navigate towards `http://127.0.0.1:8080` to verify your application is running c
 
 ## Google App Engine Standard
 
-To run on GAE-Standard, create an AppEngine project by following the setup for these 
+To run on GAE-Standard, create an App Engine project by following the setup for these 
 [instructions](https://cloud.google.com/appengine/docs/standard/python3/quickstart#before-you-begin).
 
 First, update `app.yaml` with the correct values to pass the environment 

cloud-sql/mysql/sqlalchemy/app.yaml

@@ -14,6 +14,8 @@
 
 runtime: python37
 
+# Remember - storing secrets in plaintext is potentially unsafe. Consider using
+# something like https://cloud.google.com/kms/ to help keep secrets secret.
 env_variables:
   CLOUD_SQL_INSTANCE_NAME: <MY-PROJECT>:<INSTANCE-REGION>:<MY-DATABASE>
   DB_USER: my-db-user

cloud-sql/mysql/sqlalchemy/main.py

@@ -20,9 +20,8 @@
 import sqlalchemy
 
 
-# Saving credentials in environment variables is convent, but not secure
-# - consider a more secure solution such as https://cloud.google.com/kms/ to
-# help keep secrets safe.
+# Remember - storing secrets in plaintext is potentially unsafe. Consider using
+# something like https://cloud.google.com/kms/ to help keep secrets secret.
 db_user = os.environ.get("DB_USER")
 db_pass = os.environ.get("DB_PASS")
 db_name = os.environ.get("DB_NAME")