docs(readme): Fix link to Gitter chat room to current canonical

README.md

@@ -4,7 +4,7 @@
 [![Azure Build Status](https://img.shields.io/azure-devops/build/sile-typesetter/069c3e31-ee59-4bd6-b395-1f1059acd8db/1?label=Windows%20Build&logo=Azuredevops)](https://dev.azure.com/sile-typesetter/sile/_build/latest?definitionId=1&branchName=master)<br />
 [![Luacheck Lint Status](https://img.shields.io/github/actions/workflow/status/sile-typesetter/sile/luacheck.yml?branch=master&label=Luacheck&logo=Lua)](https://github.com/sile-typesetter/sile/actions?workflow=Luacheck)
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-[![Chat on Gitter](https://img.shields.io/gitter/room/simoncozens/sile?color=blue&label=Chat&logo=Gitter)](https://gitter.im/simoncozens/sile?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Chat on Gitter](https://img.shields.io/gitter/room/sile-typesetter/sile?color=blue&label=Chat&logo=Gitter)](https://gitter.im/sile-typesetter/sile?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Conventional Commits](https://img.shields.io/badge/Conventional%20Commits-1.0.0-blue.svg)](https://conventionalcommits.org)
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