Update CONTRIBUTING.md
Update CONTRIBUTING.md

fix link
daxian-dbw/PowerShell,daxian-dbw/PowerShell,TravisEz13/PowerShell,JamesWTruher/PowerShell-1,TravisEz13/PowerShell,PaulHigin/PowerShell,PaulHigin/PowerShell,PaulHigin/PowerShell,daxian-dbw/PowerShell,JamesWTruher/PowerShell-1,TravisEz13/PowerShell,JamesWTruher/PowerShell-1,JamesWTruher/PowerShell-1,daxian-dbw/PowerShell,TravisEz13/PowerShell,PaulHigin/PowerShell