Add warning about WAGTAILFORMS_HELP_TEXT_ALLOW_HTML
Add warning about WAGTAILFORMS_HELP_TEXT_ALLOW_HTML

jnns/wagtail,thenewguy/wagtail,zerolab/wagtail,FlipperPA/wagtail,thenewguy/wagtail,zerolab/wagtail,wagtail/wagtail,torchbox/wagtail,rsalmaso/wagtail,kaedroho/wagtail,jnns/wagtail,rsalmaso/wagtail,takeflight/wagtail,zerolab/wagtail,FlipperPA/wagtail,kaedroho/wagtail,takeflight/wagtail,mixxorz/wagtail,rsalmaso/wagtail,wagtail/wagtail,torchbox/wagtail,thenewguy/wagtail,gasman/wagtail,thenewguy/wagtail,kaedroho/wagtail,rsalmaso/wagtail,mixxorz/wagtail,jnns/wagtail,FlipperPA/wagtail,gasman/wagtail,zerolab/wagtail,rsalmaso/wagtail,gasman/wagtail,takeflight/wagtail,thenewguy/wagtail,kaedroho/wagtail,mixxorz/wagtail,wagtail/wagtail,takeflight/wagtail,gasman/wagtail,FlipperPA/wagtail,wagtail/wagtail,mixxorz/wagtail,zerolab/wagtail,jnns/wagtail,wagtail/wagtail,kaedroho/wagtail,torchbox/wagtail,gasman/wagtail,torchbox/wagtail,mixxorz/wagtail