initial commit for filesystem persistence
Update README.md
add save and createFolder operations
fix unused parameter
remove and rename operations
Update README.md

Add documentation for running raml editor for file system persistence
change file-system configuration
Merge branch 'lcozzani/file-system-persistence' of https://github.com/lautaroscytl/api-designer into lcozzani/file-system-persistence
Update README.md
change 0.0.0.0 by localhost
Merge pull request #1 from lautaroscytl/lcozzani/file-system-persistence

Filesystem persistence