Small amendments

docs/src/pages/docs/install-extensions.mdx

@@ -56,7 +56,7 @@ Jan currently only accepts `.tgz` file format for extensions.
 > - You're free to develop extensions using any approach or structure that works for your needs. Feel free to experiment and innovate.
 > - If you already have your own `.tgz` extension file, please move forward to [install extension](/docs/install-extensions#install-extensions) step. 
 
-#### Extension Structure
+### Extension Structure
 Your extension should follow this basic structure:
 
 ```
@@ -69,7 +69,7 @@ my-extension/
 └── README.md           # Extension documentation
 ```
 
-#### Required package.json Fields
+### Required package.json Fields
 ```json
 {
   "name": "@your-org/extension-name",
@@ -94,7 +94,7 @@ my-extension/
 }
 ```
 
-#### Example Extension Template
+### Example Extension Template
 
 You can find a template for creating Jan extensions in our [example repository](https://github.com/janhq/extension-template).
 ## Install Extensions