Escape pipe

Author: julienrf

blog/_posts/2021-07-21-scala-3.0.2RC1-is-here.md

@@ -112,7 +112,7 @@ Keeping in mind how important metaprogramming has become to Scala developers (es
 # Other notable improvements
 
 - Add Scala 3 batch commands for Windows [#13006](https://github.com/lampepfl/dotty/pull/13006)
-- Fix [#12981](https://github.com/lampepfl/dotty/issues/12981): show diagnostics levels (warn | error) in REPL [#13000](https://github.com/lampepfl/dotty/pull/13000)
+- Fix [#12981](https://github.com/lampepfl/dotty/issues/12981): show diagnostics levels (warn \| error) in REPL [#13000](https://github.com/lampepfl/dotty/pull/13000)
 - Add no links warning setting to scaladoc [#12936](https://github.com/lampepfl/dotty/pull/12936)
 - Use WeakHashSet instead of HashSet for hash-consing types [#12935](https://github.com/lampepfl/dotty/pull/12935)
 - Balance And/Or types when forming lubs and glbs [#12928](https://github.com/lampepfl/dotty/pull/12928)