chore: Update Docusaurus links (#18581)

* Fix links

* Fix internal link refs

* Add contribution page redirect

docs/docs/databases/redshift.mdx

@@ -0,0 +1,25 @@
+---
+title: Amazon Redshift
+hide_title: true
+sidebar_position: 5
+version: 1
+---
+
+## AWS Redshift
+
+The [sqlalchemy-redshift](https://pypi.org/project/sqlalchemy-redshift/) library is the recommended
+way to connect to Redshift through SQLAlchemy.
+
+You'll need to the following setting values to form the connection string:
+
+- **User Name**: userName
+- **Password**: DBPassword
+- **Database Host**: AWS Endpoint
+- **Database Name**: Database Name
+- **Port**: default 5439
+
+Here's what the connection string looks like:
+
+```
+redshift+psycopg2://<userName>:<DBPassword>@<AWS End Point>:5439/<Database Name>
+```