add nav

Author: jhadobe

src/data/navigation/sections/app-development.js

@@ -65,6 +65,10 @@ module.exports = [
         title: "App submission guidelines",
         path: "/app-development/app-submission-guidelines.md"
     },
+    {
+        title: "Extension compatibility",
+        path: "/app-development/extension-compatibility.md"
+    },
     {
         title: "Learning path",
         path: "/app-development/learning-path.md"   

src/pages/app-development/extension-compatibility.md

@@ -37,9 +37,7 @@ Verify that your Commerce APIs are compatible with both environments by checking
 - &#8203;<Edition name="paas" /> [PaaS REST API specification](https://developer.adobe.com/commerce/webapi/rest/quick-reference/).
 - &#8203;<Edition name="saas" /> [SaaS REST API specification](https://developer.adobe.com/commerce/services/reference/cloud/rest/).
 
-**Adapt REST endpoint for older starter kit versions**
-
-<Edition name="paas" />
+&#8203;<Edition name="paas" /> **Adapt REST endpoint for older starter kit versions**
 
 For older versions of the starter kit, check if your code is adapted as follows:
 
@@ -90,8 +88,8 @@ For older versions of the starter kit, check if your code is adapted as follows:
 
 ## Out-of-process extensibility modules
 
-- &#8203;<Edition name="saas" /> Modules are pre-installed.
 - &#8203;<Edition name="paas" /> Requires composer installation.
+- &#8203;<Edition name="saas" /> Modules are pre-installed.
 - APIs function the same way in both environments:
   - [custom attributes](https://developer.adobe.com/commerce/services/cloud/guides/custom-attributes/)
   - [payment](../starter-kit/checkout/payment-reference.md)