Add security key into readme (#5223)
Add security key into readme (#5223)


zerolab/wagtail,rsalmaso/wagtail,nimasmi/wagtail,nimasmi/wagtail,wagtail/wagtail,nimasmi/wagtail,kaedroho/wagtail,kaedroho/wagtail,zerolab/wagtail,jnns/wagtail,torchbox/wagtail,gasman/wagtail,kaedroho/wagtail,kaedroho/wagtail,mikedingjan/wagtail,takeflight/wagtail,takeflight/wagtail,mixxorz/wagtail,zerolab/wagtail,thenewguy/wagtail,nimasmi/wagtail,rsalmaso/wagtail,wagtail/wagtail,kaedroho/wagtail,zerolab/wagtail,mixxorz/wagtail,mikedingjan/wagtail,gasman/wagtail,jnns/wagtail,thenewguy/wagtail,thenewguy/wagtail,nealtodd/wagtail,takeflight/wagtail,gasman/wagtail,mixxorz/wagtail,mixxorz/wagtail,FlipperPA/wagtail,mikedingjan/wagtail,rsalmaso/wagtail,thenewguy/wagtail,FlipperPA/wagtail,timorieber/wagtail,FlipperPA/wagtail,nealtodd/wagtail,wagtail/wagtail,jnns/wagtail,torchbox/wagtail,rsalmaso/wagtail,gasman/wagtail,nealtodd/wagtail,jnns/wagtail,timorieber/wagtail,timorieber/wagtail,torchbox/wagtail,rsalmaso/wagtail,thenewguy/wagtail,wagtail/wagtail,timorieber/wagtail,wagtail/wagtail,mixxorz/wagtail,nealtodd/wagtail,mikedingjan/wagtail,torchbox/wagtail,FlipperPA/wagtail,takeflight/wagtail,zerolab/wagtail,gasman/wagtail