Added links to JSX plugin's documentation and some links to `env` documentation and  plugins repositories
Added links to JSX plugin's documentation and some links to `env` documentation and  plugins repositories

LodoSoftware/javascript-style-guide,airbnb/javascript,codelegant/JavaScript,addshoppers/javascript,allanfish/javascript,naustudio/javascript,xalexec/javascript,pokelondon/javascript,codelegant/JavaScript,appcom-interactive/javascript,bl00mber/javascript,whichdigital/javascript-coding-standards,naustudio/javascript,webcoding/javascript-style-guide,cloudability/javascript-style-guide,ljharb/javascript,nulogy/javascript,LodoSoftware/javascript-style-guide,getjll/JavaScript-Style-Guide,practicefusion/javascript