Added release notes for Forms 13.4-rc1 and 15.1-rc1#6731

eshanrnh merged 25 commits intoumbraco:mainumbraco/UmbracoDocs:mainfrom

AndyButland:forms/release-notes-13.4.0-rc1-and-15.1.0-rc1AndyButland/UmbracoDocs:forms/release-notes-13.4.0-rc1-and-15.1.0-rc1Copy head branch name to clipboard