Update site title, description, and footer content

Renamed the site to 'OpenAT Design Guide' and updated the description to reflect its focus on open assistive technology. Removed the OpenAT documentation template link from aux_links and clarified licensing language in the footer.

Author: jakemcivor

_config.yml

@@ -1,17 +1,13 @@
-title: Design Guide 
-description: Design guide for parts and features commonly used in MMC Designs
+title: OpenAT Design Guide 
+description: Design resources for creating open assistive technology (OpenAT)
 theme: just-the-docs
 
 url: https://makersmakingchange.github.io/Open-AT-Design-Guide
 
 aux_links:
-  "Neil Squire":
-    - "https://www.neilsquire.ca"
   "Makers Making Change":
     - "https://www.makersmakingchange.com"
-  "Makers Making Change OpenAT Documentation Template":
-    - "https://github.com/makersmakingchange/OpenAT-Template"  
 aux_links_new_tab: true 
 
 #_includes/footer_custom.html
-footer_content: 'Copyright (c) 2025 <a href="https://www.neilsquire.ca/">Neil Squire</a> / <a href="https://www.makersmakingchange.com/">Makers Making Change</a>. This work is licensed under the <a href="http://creativecommons.org/licenses/by-sa/4.0">CC BY SA 4.0 License</a>. This website is built with <a href="https://jekyllrb.com/">Jekyll</a> and styled with the <a href="https://github.com/just-the-docs/just-the-docs">Just the Docs</a>. Jekyll and Just the Docs are MIT-licensed software and are not covered by the CC BY-SA license applied to this site’s content.'
+footer_content: 'Copyright (c) 2025 <a href="https://www.neilsquire.ca/">Neil Squire</a> / <a href="https://www.makersmakingchange.com/">Makers Making Change</a>. Content is licensed under the <a href="http://creativecommons.org/licenses/by-sa/4.0">CC BY SA 4.0 License</a>. This website is built with <a href="https://jekyllrb.com/">Jekyll</a> and styled with the <a href="https://github.com/just-the-docs/just-the-docs">Just the Docs</a>. Jekyll and Just the Docs are MIT-licensed software and are not covered by the CC BY-SA license applied to this site’s content.'