Added Tutorials

Author: ajeetraina

docs/howtos/herokunodejs/index-herokunodejs.mdx

@@ -1,6 +1,6 @@
 ---
 id: index-herokunodejs
-title: Redis on Heroku using NodeJS
+title: NodeJS based application on Heroku using Redis
 sidebar_label: How to build NodeJS based application on Heroku using Redis 
 slug: /howtos/herokunodejs
 ---

docs/howtos/herokupython/index-herokupython.mdx

@@ -1,6 +1,6 @@
 ---
 id: index-herokupython
-title: Redis on Heroku using Python
+title: Python based application on Heroku using Redis
 sidebar_label: How to build Python based application on Heroku using Redis
 slug: /howtos/herokupython
 ---

docs/howtos/index-howtos.mdx

@@ -108,7 +108,7 @@ This page holds a catalog with dozens of ready-to-use app listings from Redis La
 
  <div class="col">
     <RedisCard
-        title="Redis on Heroku using Python"
+        title="Python based application on Heroku using Python"
         description="How to build Python based Rate Limiting application on Heroku using Redis"
         page="/howtos/herokupython"
         />
@@ -117,7 +117,7 @@ This page holds a catalog with dozens of ready-to-use app listings from Redis La
 
  <div class="col">
     <RedisCard
-        title="NodeJS Heroku using Redis"
+        title="NodeJS based application on Heroku using Redis"
         description="How to build NodeJS based Rate Limiting application on Heroku using Redis"
         page="/howtos/herokunodejs"
         />
@@ -126,7 +126,7 @@ This page holds a catalog with dozens of ready-to-use app listings from Redis La
 
 <div class="col">
     <RedisCard
-        title="Java on Heroku using Redis"
+        title="Java based application on Heroku using Redis"
         description="How to build Java based application on Heroku using Redis"
         page="/howtos/herokujava"
         />