Make the up-for-grabs link organization-wide [Skip CI]

README.md

@@ -97,7 +97,7 @@ Serilog has an active and helpful community who are happy to help point you in t
 
 ### Contributing
 
-Would you like to help make Serilog even better? We keep a list of issues that are approachable for newcomers under the [up-for-grabs](https://github.com/serilog/serilog/issues?labels=up-for-grabs&state=open) label. Before starting work on a pull request, we suggest commenting on, or raising, an issue on the issue tracker so that we can help and coordinate efforts.  For more details check out our [contributing guide](CONTRIBUTING.md).
+Would you like to help make Serilog even better? We keep a list of issues that are approachable for newcomers under the [up-for-grabs](https://github.com/issues?utf8=%E2%9C%93&q=is%3Aopen+is%3Aissue+user%3Aserilog+label%3Aup-for-grabs) label. Before starting work on a pull request, we suggest commenting on, or raising, an issue on the issue tracker so that we can help and coordinate efforts.  For more details check out our [contributing guide](CONTRIBUTING.md).
 
 When contributing please keep in mind our [Code of Conduct](CODE_OF_CONDUCT.md).