Add documentation for the panel rendering mechanism
Add documentation for the panel rendering mechanism

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