DA-1354 refactor: tutorial titles (#84)

DA-1354 refactor: tutorial titles for clarity and consistency across multiple markdown files

Author: VirajAgarwal1

tutorial/markdown/c++/cxx-quickstart.md

@@ -24,7 +24,7 @@ length: 30 Mins
 ---
 
 <!-- [abstract] -->
-# Quickstart for Couchbase in C++
+# Quickstart in Couchbase with C++
 
 In this tutorial, you will learn how to connect to a Couchbase Capella cluster to create, read, update, and delete documents, how to write simple parametrized SQL++ queries and how to create, and perform simple and complex text search using Search indexes.
 

tutorial/markdown/couchbase-server/grafana-dashboards/grafana-dashboards.md

@@ -33,7 +33,7 @@ This tutorial will show how to create a connection between existing Grafana and
 * [Couchbase documentation](https://docs.couchbase.com)
 * [Plugin sources](https://github.com/couchbaselabs/grafana-plugin)
 
-# Prerequisites
+## Prerequisites
 * Grafana >= 7.0
 * Couchbase >= 7.0
 * NodeJS >= 14

tutorial/markdown/mobile/syncgateway-openid-auth/syncgateway-openid-auth.md

@@ -25,7 +25,7 @@ sdk_language:
 length: 30 Mins
 ---
 
-# Set up an OpenID Connect authentication for the Sync Gateway
+# OpenID Connect Authentication for Sync Gateway with Keycloak
 
 ## Introduction
 

tutorial/markdown/nodejs/quickstart-mastra/mastra-couchbase-nextJS-tutorial.md

@@ -21,7 +21,7 @@ sdk_language:
 length: 60 Mins
 ---
 
-# Building a RAG Application with Mastra and Couchbase: A Step-by-Step Tutorial
+# Building a RAG Application with Mastra and Couchbase
 
 This tutorial will guide you through building a complete Retrieval-Augmented Generation (RAG) application from scratch using [Next.js](https://nextjs.org/), the [Mastra AI framework](https://mastra.ai/), and [Couchbase](https://www.couchbase.com/) for [vector search](https://www.couchbase.com/products/vector-search/). We'll start by getting the pre-built application running and then break down how each part works so you can build it yourself.