Updated titles into a consistent format.
Fixed links to the diagrams.
Fixed typos.
Note: The Templates menu in the navbar is now sorted by the file names.
I'll try sorting the navbar menus by the page titles, not the page file
names.
# Description
Add a RAG template showcasing Momento Vector Index as a vector store.
Includes a project directory and README.
# **Twitter handle**
Tag the company @momentohq for a mention and @mlonml for the
contribution.
