Added resigning docs for xcuitest (#3067)

* Added resigning docs for xcuitest

* Removed audio capture since it no longer applies to xcuitest and always enabled

docs/mobile-apps/automated-testing/espresso-xcuitest/xcuitest.md

@@ -811,17 +811,17 @@ suites:
 
 ---
 
-#### `audioCapture`
+#### `resigningEnabled`
 
 <p><small>| OPTIONAL | BOOLEAN | <span className="sauceGreen">Real Devices Only</span> |</small></p>
 
-Record the audio stream generated by your native mobile app during a real device test.
+Enables resigning of the app so that it can run on RDC devices. Set to `true` by default. It must be kept as `true` in order for instrumentation features to work. Can be set to `false` for private devices to install the app to the device as is.
 
 ```yaml
 suites:
   - name: My Saucy Test
     appSettings:
-      audioCapture: true
+      resigningEnabled: true
 ```
 
 ---