Update the docs

Author: mdmintz

help_docs/mobile_testing.md

@@ -2,37 +2,35 @@
 
 <h2><img src="https://seleniumbase.io/img/sb_icon.png" title="SeleniumBase" width="30" /> Mobile Testing</h2>
 
-Use ``--mobile`` to run your SeleniumBase tests using Chromium's mobile device emulator with default values for device metrics (CSS Width, CSS Height, Pixel-Ratio) and user agent.
+Use ``--mobile`` to run your SeleniumBase tests using Chrome's mobile device emulator with default values for Device Metrics and User-Agent.
+
+<b>Here's an example mobile test:</b>
+
+* [SeleniumBase/examples/test_skype_site.py](https://github.com/seleniumbase/SeleniumBase/blob/master/examples/test_skype_site.py)
 
-To configure the mobile device metrics, use:
+```bash
+pytest test_skype_site.py --mobile
+```
+[<img src="https://cdn2.hubspot.net/hubfs/100006/images/skype_mobile_test_2.gif" title="SeleniumBase Mobile Testing">](https://cdn2.hubspot.net/hubfs/100006/images/skype_mobile_test_2.gif)
+
+To configure Device Metrics, use:
 ```bash
 --metrics="CSS_Width,CSS_Height,Pixel_Ratio"
 ```
 
-To configure the user agent, use:
+To configure the User-Agent, use:
 ```bash
 --agent="USER-AGENT-STRING"
 ```
 
-To find real values for device metrics, see:
+To find real values for Device Metrics, see:
 * [Device Metrics List](https://gist.github.com/sidferreira/3f5fad525e99b395d8bd882ee0fd9d00)
 
-For a list of available user agent strings, see:
+For a list of available User-Agent strings, see:
 * [User Agent Strings List](https://developers.whatismybrowser.com/useragents/explore/)
 
 --------
 
-Here's an example of running a mobile test:
-
-* [SeleniumBase/examples/test_skype_site.py](https://github.com/seleniumbase/SeleniumBase/blob/master/examples/test_skype_site.py)
-
-```bash
-pytest test_skype_site.py --mobile
-```
-[<img src="https://cdn2.hubspot.net/hubfs/100006/images/skype_mobile_test_2.gif" title="SeleniumBase Mobile Testing">](https://cdn2.hubspot.net/hubfs/100006/images/skype_mobile_test_2.gif)
-
---------
-
 Here's another example of running a mobile test ([SeleniumBase/examples/test_swag_labs.py](https://github.com/seleniumbase/SeleniumBase/blob/master/examples/test_swag_labs.py)), which demonstrates using ``--metrics`` and ``--agent`` with ``--mobile``:
 
 ```bash