Update the docs

Author: mdmintz

help_docs/hidden_files_info.md

@@ -1,11 +1,13 @@
 ## Info about hidden files on macOS
 
 Depending on your macOS settings, some files may be hidden from view in your Finder window, such as ``.gitignore``. To view all files, run the following command and then reopen the Finder window:
+
 ```bash
 defaults write com.apple.finder AppleShowAllFiles -bool true
 ```
 
-More info on that can be found here:
-<a href="https://www.defaults-write.com/show-hidden-files-in-os-x-finder/">https://www.defaults-write.com/show-hidden-files-in-os-x-finder/</a>
-<a href="https://www.macworld.co.uk/how-to/mac-software/hidden-files-mac-3520878/">https://www.macworld.co.uk/how-to/mac-software/hidden-files-mac-3520878/</a>
-<a href="https://setapp.com/how-to/show-hidden-files-on-mac">https://setapp.com/how-to/show-hidden-files-on-mac</a>
+More info on that can be found here:<ul>
+<li><a href="https://www.defaults-write.com/show-hidden-files-in-os-x-finder/">https://www.defaults-write.com/show-hidden-files-in-os-x-finder/</a></li>
+<li><a href="https://www.macworld.co.uk/how-to/mac-software/hidden-files-mac-3520878/">https://www.macworld.co.uk/how-to/mac-software/hidden-files-mac-3520878/</a></li>
+<li><a href="https://setapp.com/how-to/show-hidden-files-on-mac">https://setapp.com/how-to/show-hidden-files-on-mac</a></li>
+</ul>

help_docs/method_summary.md

@@ -2,7 +2,7 @@
 
 <h2><img src="https://seleniumbase.io/img/logo6.png" title="SeleniumBase" width="32" /> Method Summary (API Reference)</h2>
 
-[<img src="http://img.youtube.com/vi/_yNJlHnp2JA/0.jpg" title="SeleniumBase Features" width="285">](https://www.youtube.com/watch?v=_yNJlHnp2JA)
+[<img src="https://seleniumbase.io/cdn/img/sb_api_youtube.png" title="SeleniumBase Features" width="285">](https://www.youtube.com/watch?v=_yNJlHnp2JA)
 <p>(<b><a href="https://www.youtube.com/watch?v=_yNJlHnp2JA">Common API Methods on YouTube</a></b>)</p>
 
 Here's a list of SeleniumBase method definitions, which are defined in [base_case.py](https://github.com/seleniumbase/SeleniumBase/blob/master/seleniumbase/fixtures/base_case.py)