Update CONTRIBUTING to ask for more info
Update CONTRIBUTING to ask for more info

Ask about test target and which installation tool used.

ashfurrow/Nimble,mishimay/Nimble,jeffh/Nimble,DanielAsher/Nimble,abbeycode/Nimble,jeffh/Nimble,dgdosen/Nimble,AnthonyMDev/Nimble,mishimay/Nimble,ashfurrow/Nimble,AnthonyMDev/Nimble,ashfurrow/Nimble,DanielAsher/Nimble,feinstruktur/Nimble,dgdosen/Nimble,twobitlabs/Nimble,jeffh/Nimble,phatblat/Nimble,phatblat/Nimble,abbeycode/Nimble,jeffh/Nimble,abbeycode/Nimble,phatblat/Nimble,Quick/Nimble,feinstruktur/Nimble,AnthonyMDev/Nimble,twobitlabs/Nimble,Quick/Nimble,dgdosen/Nimble,Quick/Nimble,dgdosen/Nimble,twobitlabs/Nimble,DanielAsher/Nimble,feinstruktur/Nimble,mishimay/Nimble,abbeycode/Nimble