Update message-index/messages/GHC-53786/case-expr-in-do-block/index.md

Co-authored-by: David Thrane Christiansen <[email protected]>

Author: jhrcek

message-index/messages/GHC-53786/case-expr-in-do-block/index.md

@@ -4,7 +4,7 @@ title: Case expression in do-block
 
 The expression in one branch of the case expression is a `do`-block that's missing a `do`. This triggers a corner case in the grammar of Haskell, and the `case`-expression is interpreted as the pattern part of a bind statement in the top-level `do`-block. 
 
-More details are available at [https://gitlab.haskell.org/ghc/ghc/-/issues/984](https://gitlab.haskell.org/ghc/ghc/-/issues/984)
+More details are available [on the GHC issue tracker, issue #984](https://gitlab.haskell.org/ghc/ghc/-/issues/984).
 
 ## Error Message