docs: update ext links

Author: yamankatby

docs/storage-image-processing-api/index.mdx

@@ -56,12 +56,11 @@ After installation, a new Cloud Function called `process` will be added to your
 
 ```bash
 curl -X GET \
-  https://{LOCATION}-{PROJECT_ID}.cloudfunctions.net/{EXTENSION_INSTANCE_ID}-handler/process?operations=...
+  https://{LOCATION}-{PROJECT_ID}.cloudfunctions.net/ext-storage-image-processing-api-handler/process?operations=...
 ```
 
 - **`{LOCATION}`**: The Cloud Functions location that was specified during the installation of the extension.
 - **`{PROJECT_ID}`**: The Firebase project ID.
-- **`{EXTENSION_INSTANCE_ID}`**: The extension instance ID.
 
 ### Operations
 

extensions/storage-image-processing-api/POSTINSTALL.md

@@ -4,7 +4,7 @@ You can test out this extension right away!
 
 Use the following URL to access the image processing API:
 
-[https://{param:LOCATION}-{param:PROJECT_ID}.cloudfunctions.net/{param:EXTENSION_INSTANCE_ID}-handler/process](https://{param:LOCATION}-{param:PROJECT_ID}.cloudfunctions.net/{param:EXTENSION_INSTANCE_ID}-handler/process)
+[https://{param:LOCATION}-{param:PROJECT_ID}.cloudfunctions.net/ext-storage-image-processing-api-handler/process](https://{param:LOCATION}-{param:PROJECT_ID}.cloudfunctions.net/ext-storage-image-processing-api-handler/process)
 
 ### Using the extension