Fixed typo in StreamBlock example (#8020)
Fixed typo in StreamBlock example (#8020)


thenewguy/wagtail,zerolab/wagtail,rsalmaso/wagtail,zerolab/wagtail,thenewguy/wagtail,zerolab/wagtail,wagtail/wagtail,rsalmaso/wagtail,rsalmaso/wagtail,thenewguy/wagtail,wagtail/wagtail,zerolab/wagtail,rsalmaso/wagtail,wagtail/wagtail,thenewguy/wagtail,wagtail/wagtail,thenewguy/wagtail,rsalmaso/wagtail,zerolab/wagtail,wagtail/wagtail