Merge pull request #291 from creative-commoners/pulls/master/userforms

ENH Add userform docs

sources-docs.js

@@ -17,6 +17,15 @@ module.exports = [
       patterns: 'docs/en/!(userguide)/**'
     }
   },
+  {
+    resolve: 'gatsby-source-git',
+    options: {
+      name: 'docs--5--optional_features/userforms',
+      remote: 'https://github.com/silverstripe/silverstripe-userforms.git',
+      branch: '6.2',
+      patterns: 'docs/en/!(userguide)/**'
+    }
+  },
   {
     resolve: 'gatsby-source-git',
     options: {