docs(new): add TSDoc comments to BrowserContext (#6066)

new-docs/puppeteer.browsercontext.clearpermissionoverrides.md

@@ -4,6 +4,8 @@
 
 ## BrowserContext.clearPermissionOverrides() method
 
+Clears all permission overrides for the browser context.
+
 <b>Signature:</b>
 
 ```typescript
@@ -13,3 +15,14 @@ clearPermissionOverrides(): Promise<void>;
 
 Promise&lt;void&gt;
 
+## Example
+
+
+```js
+const context = browser.defaultBrowserContext();
+context.overridePermissions('https://example.com', ['clipboard-read']);
+// do stuff ..
+context.clearPermissionOverrides();
+
+```
+