Update documentation to show how to install plugin for both new and old version of kate
Update documentation to show how to install plugin for both new and old version of kate

leepa/isort,levic/isort,aequitas/isort,jmullan/isort,PyCQA/isort,jamesbroadhead/isort,PyCQA/isort,tomviner/isort,wimglenn/isort,wimglenn/isort,leepa/isort,tomviner/isort,adamchainz/isort,pahko/isort,aequitas/isort,jmullan/isort,graingert/isort,AbsoluteMSTR/isort,graingert/isort,jamesbroadhead/isort,gforcada/isort,pahko/isort,AbsoluteMSTR/isort,gforcada/isort,levic/isort,adamchainz/isort