Added Heroku Python

Author: ajeetraina

docs/howtos/herokujava/index-herokujava.mdx

@@ -41,12 +41,12 @@ If you are using Heroku for the first time, create your new Heroku account [thro
 
 ### Step 5. Connect your application to Redis Enterprise Cloud
 
-For this demonstration, we will be using a [Sample Rate Limiting application](https://github.com/redis-developer/basic-rate-limiting-demo-nodejs)
+For this demonstration, we will be using a [Sample Rate Limiting application](https://github.com/redis-developer/basic-rate-limiting-demo-java)
 
 #### Clone the repository
 
    ```bash
-    git clone https://github.com/redis-developer/basic-rate-limiting-demo-nodejs
+    git clone https://github.com/redis-developer/basic-rate-limiting-demo-java
    ```
 
 ```