add .idea_modules/
add .idea_modules/

https://github.com/mpeltonen/sbt-idea generates this folder
bruennijs/ise.cppworkshop,szymanskirafal/gitignore,bruennijs/ise.cppworkshop,szymanskirafal/gitignore,bruennijs/ise.cppworkshop,chhsieh/helloworld,chhsieh/gitTest_1,szymanskirafal/gitignore