Merge #1108

1108: Fix issue label link in docs/dev/README.md r=matklad a=pcpthm



Co-authored-by: pcpthm <[email protected]>

Author: bors[bot]

docs/dev/README.md

@@ -45,7 +45,7 @@ mandatory), add yourself to the list!
   [E-medium](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AE-medium),
   [E-hard](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AE-hard),
   labels are *estimates* for how hard would be to write a fix.
-* [E-fun](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AE-fun)
+* [fun](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3Afun)
   is for cool, but probably hard stuff.
 
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