customize docs layout

docs/_config.yml

@@ -1 +1,5 @@
-theme: jekyll-theme-cayman
+theme: jekyll-theme-cayman
+
+title: Meshtastic
+description: An opensource hiking, pilot, skiing, Signal-App-extending GPS mesh communicator
+google_analytics: G-DRZ5H5EXHV

docs/editing-this-site.md

@@ -1,7 +1,10 @@
 If you'd like to edit this website and test it locally:
 
+Not yet implemented:
 Per https://help.github.com/en/github/working-with-github-pages/testing-your-github-pages-site-locally-with-jekyll
 
 * follow instructions here: https://jekyllrb.com/docs/installation/ubuntu/
 * run "run-locally.sh"
 * view webpages at localhost:4000
+
+The template seems to come from here: https://github.com/pages-themes/cayman