Merge pull request #7 from materialsproject/dependabot/bundler/docs/json-2.19.2

Bump json from 2.18.1 to 2.19.2 in /docs

Author: shyuep

docs/Gemfile.lock

@@ -198,7 +198,7 @@ GEM
       gemoji (~> 3.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0, < 5.0)
-    json (2.18.1)
+    json (2.19.2)
     kramdown (2.3.2)
       rexml
     kramdown-parser-gfm (1.1.0)