Copy edit overview

Author: ethanpalm

api-playground/overview.mdx

@@ -15,13 +15,15 @@ The API playground is an interactive environment that lets users test and explor
 
 The playground is automatically generated from your OpenAPI specification or AsyncAPI schema so any updates to your API are automatically reflected in the playground. You can also manually create API reference pages after defining a base URL and authentication method in your `docs.json`.
 
-We recommend generating your API playground with an OpenAPI specification. See [OpenAPI Setup](/api-playground/openapi-setup) for more information on creating your OpenAPI document.
+We recommend generating your API playground from an OpenAPI specification. See [OpenAPI Setup](/api-playground/openapi-setup) for more information on creating your OpenAPI document.
 
 ## Getting started
 
 <Steps>
   <Step title="Add your OpenAPI specification file.">
-    You will need a valid OpenAPI specification file in your project.
+    <Info>
+    Make sure that your OpenAPI specification file is valid.
+    </Info>
 
     ``` {2}
     /your-project
@@ -72,9 +74,11 @@ You can customize your API playground by defining the following properties in yo
 
 <ResponseField name="examples" type="object">
     Configurations for the autogenerated API examples.
-    <Expandable title="Examples" defaultOpen="True">
+    <Expandable title="examples" defaultOpen="True">
     <ResponseField name="languages" type="array of string">
         Example languages for the autogenerated API snippets.
+
+        Languages display in the order specified.
     </ResponseField>
         <ResponseField name="defaults" type="&quot;required&quot; | &quot;all&quot;">
         Whether to show optional parameters in API examples. Defaults to `all`.
@@ -98,7 +102,7 @@ You can customize your API playground by defining the following properties in yo
 }
 ```
 
-This example configures the API playground to be fully interactive with example code snippets for cURL, Python, and JavaScript. Only required parameters are shown in the code snippets.
+This example configures the API playground to be interactive with example code snippets for cURL, Python, and JavaScript. Only required parameters are shown in the code snippets.
 
 ### Custom `MDX` pages
 
@@ -109,8 +113,8 @@ When you need more control over your API documentation, create individual `MDX`
 - Hide specific operations
 - Reorder pages in your navigation
 
-See [MDX Setup](/api-playground/mdx/configuration.mdx) for more information on creating individual pages for your API endpoints.
+See [MDX Setup](/api-playground/mdx/configuration) for more information on creating individual pages for your API endpoints.
 
 ## Further reading
 
-- [AsyncAPI Setup](/api-playground/asyncapi/setup.mdx) for more information on creating your AsyncAPI schema to generate WebSocket reference pages.
+- [AsyncAPI Setup](/api-playground/asyncapi/setup) for more information on creating your AsyncAPI schema to generate WebSocket reference pages.