Docs add analytics (#264)

* Adding Google Analytics to the Foundry documentation

The analytics are under Rachel Clune's OSMF account and will only be used for reporting to the Rosetta Commons Board

* Add simple analytics tracking to the foundry docs

Simple analytics does not collect any personal information.
The page view information will only be used for reporting to the Rosetta board and prioritizing future work.

docs/source/_static/ga.js

@@ -0,0 +1,5 @@
+window.dataLayer = window.dataLayer || [];
+function gtag(){dataLayer.push(arguments);}
+gtag('js', new Date());
+
+gtag('config', 'G-6Q7T573HLF');

docs/source/conf.py

@@ -58,4 +58,7 @@ source_suffix = {
     ".md": "markdown",
     }
 
+html_js_files = [
+    ('https://scripts.simpleanalyticscdn.com/latest.js', {'async': 'async', 'defer': 'defer'}),
+]
 suppress_warnings = ["myst.xref_missing"]