Install.rst: Fix typo in documentation
Install.rst: Fix typo in documentation

Change vertualenv to virtualenv in docs/Users/Install.rst

Fixes https://github.com/coala-analyzer/coala/issues/1691

tushar-rishav/coala,RJ722/coala,mr-karan/coala,damngamerz/coala,sophiavanvalkenburg/coala,lonewolf07/coala,NiklasMM/coala,yland/coala,d6e/coala,abhiroyg/coala,tltuan/coala,sils1297/coala,dagdaggo/coala,JohnS-01/coala,coala/coala,swatilodha/coala,CruiseDevice/coala,coala-analyzer/coala,yashLadha/coala,arush0311/coala,NalinG/coala,NalinG/coala,Asalle/coala,lonewolf07/coala,Uran198/coala,abhiroyg/coala,stevemontana1980/coala,yashtrivedi96/coala,d6e/coala,damngamerz/coala,karansingh1559/coala,arjunsinghy96/coala,kartikeys98/coala,yland/coala,meetmangukiya/coala,Shade5/coala,scottbelden/coala,vinc456/coala,CruiseDevice/coala,scottbelden/coala,arush0311/coala,refeed/coala,kartikeys98/coala,Asnelchristian/coala,shreyans800755/coala,tushar-rishav/coala,Asnelchristian/coala,saurabhiiit/coala,meetmangukiya/coala,tltuan/coala,svsn2117/coala,d6e/coala,damngamerz/coala,sagark123/coala,MattAllmendinger/coala,Asalle/coala,refeed/coala,sagark123/coala,yland/coala,MariosPanag/coala,Shade5/coala,ManjiriBirajdar/coala,arafsheikh/coala,aptrishu/coala,CruiseDevice/coala,jayvdb/coala,rresol/coala,Nosferatul/coala,AbdealiJK/coala,Asnelchristian/coala,MattAllmendinger/coala,vinc456/coala,Uran198/coala,dagdaggo/coala,mr-karan/coala,coala-analyzer/coala,Balaji2198/coala,coala/coala,MariosPanag/coala,kartikeys98/coala,arafsheikh/coala,SanketDG/coala,sagark123/coala,MariosPanag/coala,JohnS-01/coala,shreyans800755/coala,Asalle/coala,MattAllmendinger/coala,ManjiriBirajdar/coala,dagdaggo/coala,nemaniarjun/coala,yashLadha/coala,NalinG/coala,abhiroyg/coala,mr-karan/coala,aptrishu/coala,djkonro/coala,yashLadha/coala,netman92/coala,nemaniarjun/coala,arjunsinghy96/coala,meetmangukiya/coala,Nosferatul/coala,djkonro/coala,rimacone/testing2,Uran198/coala,incorrectusername/coala,Balaji2198/coala,stevemontana1980/coala,karansingh1559/coala,coala-analyzer/coala,JohnS-01/coala,karansingh1559/coala,netman92/coala,yashtrivedi96/coala,arjunsinghy96/coala,NiklasMM/coala,stevemontana1980/coala,ayushin78/coala,sophiavanvalkenburg/coala,NiklasMM/coala,rresol/coala,saurabhiiit/coala,ManjiriBirajdar/coala,refeed/coala,NalinG/coala,impmihai/coala,AbdealiJK/coala,sils1297/coala,Balaji2198/coala,ayushin78/coala,NalinG/coala,incorrectusername/coala,nemaniarjun/coala,AbdealiJK/coala,yashtrivedi96/coala,tushar-rishav/coala,jayvdb/coala,netman92/coala,shreyans800755/coala,arafsheikh/coala,arush0311/coala,jayvdb/coala,rimacone/testing2,sils1297/coala,lonewolf07/coala,tltuan/coala,djkonro/coala,saurabhiiit/coala,Nosferatul/coala,NalinG/coala,SanketDG/coala,swatilodha/coala,rimacone/testing2,ayushin78/coala,sophiavanvalkenburg/coala,impmihai/coala,scottbelden/coala,Shade5/coala,aptrishu/coala,RJ722/coala,RJ722/coala,NalinG/coala,rresol/coala,vinc456/coala,SanketDG/coala,swatilodha/coala,svsn2117/coala,coala/coala,impmihai/coala,svsn2117/coala,incorrectusername/coala