Improved types and updated documentation (#71)

* v1.0.0-alpha44

website/content/docs/local-backend.mdx

@@ -14,6 +14,7 @@ The local backend allows you to use Static CMS with a local git repository, inst
 
 ### Example
 
+<CodeTabs>
 ```yaml
 backend:
   name: git-gateway
@@ -22,6 +23,16 @@ backend:
 local_backend: true
 ```
 
+```js
+backend: {
+  name: 'git-gateway',
+},
+// when using the default proxy server port
+local_backend: true,
+```
+
+</CodeTabs>
+
 ## Usage
 
 1. Run `npx @staticcms/proxy-server` from the root directory of the above repository.
@@ -44,8 +55,9 @@ local_backend: true
 PORT=8082
 ```
 
-2. Update the `local_backend` object in `config.yml` and specify a `url` property to use your custom port number
+2. Update the `local_backend` object in `config` and specify a `url` property to use your custom port number
 
+<CodeTabs>
 ```yaml
 backend:
   name: git-gateway
@@ -56,3 +68,17 @@ local_backend:
   # when accessing the local site from a host other than 'localhost' or '127.0.0.1'
   allowed_hosts: ['192.168.0.1']
 ```
+
+```js
+backend: {
+  name: 'git-gateway',
+},
+local_backend: {
+  // when using a custom proxy server port
+  url: 'http://localhost:8082/api/v1',
+  // when accessing the local site from a host other than 'localhost' or '127.0.0.1'
+  allowed_hosts: ['192.168.0.1'],
+},
+```
+
+</CodeTabs>