Close issue #747 .

       deleted:    plugins/Conditional/README.md
       deleted:    plugins/Protector/README.md
       deleted:    plugins/QuoteGrabs/README.md
       deleted:    plugins/String/README.md
       deleted:    plugins/Unix/README.md
       deleted:    plugins/Utilities/README.md
       deleted:    sandbox/Debug/README.md

Easier this way, @DjSlash .

[SKIP CI]