Update docs/release-notes/.FSharp.Compiler.Service/9.0.300.md

Author: psfinaki

docs/release-notes/.FSharp.Compiler.Service/9.0.300.md

@@ -6,7 +6,7 @@
 * Fix missing nullness warning when static upcast dropped nullness ([Issue #18232](https://github.com/dotnet/fsharp/issues/18232), [PR #18261](https://github.com/dotnet/fsharp/pull/18261))
 * Cancellable: only cancel on OCE with own token ([PR #18277](https://github.com/dotnet/fsharp/pull/18277))
 * Cancellable: set token in more places ([PR #18283](https://github.com/dotnet/fsharp/pull/18283))
-Cancellable: fix leaking cancellation token ([PR #18295](https://github.com/dotnet/fsharp/pull/18295))
+* Cancellable: fix leaking cancellation token ([PR #18295](https://github.com/dotnet/fsharp/pull/18295))
 
 ### Added
 * Added missing type constraints in FCS. ([PR #18241](https://github.com/dotnet/fsharp/pull/18241))