build(deps): bump gatsby-transformer-yaml from 2.8.0 to 2.11.0 in /docs (#1718)

Author: dependabot[bot]

docs/package-lock.json

@@ -37,7 +37,7 @@
     "gatsby-source-filesystem": "^2.11.0",
     "gatsby-transformer-remark": "^2.13.1",
     "gatsby-transformer-sharp": "^2.12.0",
-    "gatsby-transformer-yaml": "^2.8.0",
+    "gatsby-transformer-yaml": "^2.11.0",
     "polished": "^4.1.0",
     "prism-react-renderer": "^1.1.1",
     "prop-types": "^15.7.2",