DOCSP-30547: indexes (#62)

(cherry picked from commit 294a906)

Author: rustagir

source/fundamentals.txt

@@ -17,19 +17,14 @@ Fundamentals
    /fundamentals/database-collection
    /fundamentals/schema-validation
    /fundamentals/aggregation
+   /fundamentals/indexes
    /fundamentals/tracing-logging
    /fundamentals/run-command
    /fundamentals/performance
 
 ..
    Connect to MongoDB Atlas from AWS Lambda <https://www.mongodb.com/docs/atlas/manage-connections-aws-lambda/>
-   /fundamentals/stable-api
-   /fundamentals/context
-   /fundamentals/auth
-   /fundamentals/enterprise-auth
-   /fundamentals/indexes
    /fundamentals/transactions
-   /fundamentals/logging
    /fundamentals/collations
    /fundamentals/monitoring
    /fundamentals/gridfs