Writing_Good_Commits.rst: Reword line
Writing_Good_Commits.rst: Reword line

Drop the word 'only' from the statement 'It should
describe only one change and not more.'.

Closes http://github.com/coala/coala/issues/3258

Nosferatul/coala,refeed/coala,Asalle/coala,nemaniarjun/coala,ayushin78/coala,kartikeys98/coala,arjunsinghy96/coala,Nosferatul/coala,JohnS-01/coala,damngamerz/coala,NiklasMM/coala,arush0311/coala,arush0311/coala,rimacone/testing2,Balaji2198/coala,kartikeys98/coala,incorrectusername/coala,CruiseDevice/coala,jayvdb/coala,Asalle/coala,RJ722/coala,kartikeys98/coala,RJ722/coala,Asnelchristian/coala,Asnelchristian/coala,nemaniarjun/coala,karansingh1559/coala,yashtrivedi96/coala,RJ722/coala,CruiseDevice/coala,damngamerz/coala,shreyans800755/coala,MariosPanag/coala,incorrectusername/coala,aptrishu/coala,Shade5/coala,ayushin78/coala,yashtrivedi96/coala,JohnS-01/coala,arush0311/coala,Shade5/coala,Asnelchristian/coala,karansingh1559/coala,shreyans800755/coala,Nosferatul/coala,Shade5/coala,shreyans800755/coala,SanketDG/coala,sagark123/coala,CruiseDevice/coala,incorrectusername/coala,refeed/coala,refeed/coala,arjunsinghy96/coala,MariosPanag/coala,yashtrivedi96/coala,coala/coala,sagark123/coala,coala/coala,damngamerz/coala,rimacone/testing2,SanketDG/coala,Balaji2198/coala,aptrishu/coala,karansingh1559/coala,arjunsinghy96/coala,JohnS-01/coala,netman92/coala,aptrishu/coala,jayvdb/coala,netman92/coala,rimacone/testing2,nemaniarjun/coala,coala/coala,jayvdb/coala,NiklasMM/coala,yashLadha/coala,yashLadha/coala,yashLadha/coala,coala-analyzer/coala,MariosPanag/coala,netman92/coala,SanketDG/coala,NiklasMM/coala,sagark123/coala,coala-analyzer/coala,ayushin78/coala,coala-analyzer/coala,Balaji2198/coala,Asalle/coala