Add troubleshooting info for PuTTy users
Add troubleshooting info for PuTTy users

Refs #107.

EricSB/powerline,magus424/powerline,EricSB/powerline,keelerm84/powerline,S0lll0s/powerline,Luffin/powerline,DoctorJellyface/powerline,cyrixhero/powerline,cyrixhero/powerline,bezhermoso/powerline,kenrachynski/powerline,keelerm84/powerline,xfumihiro/powerline,bartvm/powerline,IvanAli/powerline,kenrachynski/powerline,darac/powerline,xxxhycl2010/powerline,S0lll0s/powerline,QuLogic/powerline,blindFS/powerline,lukw00/powerline,prvnkumar/powerline,IvanAli/powerline,bartvm/powerline,areteix/powerline,seanfisk/powerline,IvanAli/powerline,Liangjianghao/powerline,wfscheper/powerline,prvnkumar/powerline,seanfisk/powerline,wfscheper/powerline,russellb/powerline,firebitsbr/powerline,darac/powerline,magus424/powerline,junix/powerline,areteix/powerline,prvnkumar/powerline,xfumihiro/powerline,DoctorJellyface/powerline,blindFS/powerline,russellb/powerline,junix/powerline,seanfisk/powerline,Liangjianghao/powerline,junix/powerline,russellb/powerline,lukw00/powerline,bartvm/powerline,bezhermoso/powerline,cyrixhero/powerline,S0lll0s/powerline,dragon788/powerline,Liangjianghao/powerline,darac/powerline,dragon788/powerline,s0undt3ch/powerline,DoctorJellyface/powerline,xxxhycl2010/powerline,blindFS/powerline,xfumihiro/powerline,firebitsbr/powerline,QuLogic/powerline,Luffin/powerline,EricSB/powerline,areteix/powerline,kenrachynski/powerline,dragon788/powerline,QuLogic/powerline,s0undt3ch/powerline,wfscheper/powerline,lukw00/powerline,firebitsbr/powerline,Luffin/powerline,bezhermoso/powerline,xxxhycl2010/powerline,s0undt3ch/powerline,magus424/powerline