Add shiny badges to README.md [ci skip]
Add shiny badges to README.md [ci skip]

linuxmaniac/luacheck,adan830/luacheck,xpol/luacheck,xpol/luacheck,kidaa/luacheck,tst2005/luacheck,mpeterv/luacheck,kidaa/luacheck,xpol/luacheck,mpeterv/luacheck,adan830/luacheck,linuxmaniac/luacheck,tst2005/luacheck,mpeterv/luacheck