diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..195e9bb
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+index.html
+.cache
diff --git a/index.bs b/index.bs
index d306cfb..cb0379e 100644
--- a/index.bs
+++ b/index.bs
@@ -14,7 +14,7 @@ Abstract:
   This specification defines "secure contexts", thereby allowing user agent
   implementers and specification authors to enable certain features only when
   certain minimum standards of authentication and confidentiality are met.
-Version History: https://github.com/w3c/webappsec-secure-contexts/commits/master/index.bs
+Version History: https://github.com/w3c/webappsec-secure-contexts/commits/main/index.bs
 !Participate: <a href="https://github.com/w3c/webappsec-secure-contexts/issues/new">File an issue</a> (<a href="https://github.com/w3c/webappsec-secure-contexts/issues">open issues</a>)
 Indent: 2
 Markup Shorthands: markdown on