Update zipCode.html
#199: Update the zipCode doc
Merge branch 'patch-1' of https://github.com/Francismori7/bootstrapvalidator into gh-pages

Conflicts:
	validators/zipCode.html
Merge branch 'patch-1' of https://github.com/Francismori7/bootstrapvalidator into gh-pages

Conflicts:
	validators/zipCode.html