Update PR links

Author: JeanMarc van Leerdam

CHANGES.md

@@ -1,13 +1,13 @@
 ## 3.2.2 (not yet released)
 
 ### What's changed
-* Added support for ArchiMate shapes in sequence diagrams in [??](??)
+* Added support for ArchiMate shapes in sequence diagrams in [#59](https://github.com/plantuml-stdlib/Archimate-PlantUML/pull/59)
 
 
 ## 3.2.1 (not yet released)
 
 ### What's changed
-* Special shapes can be used for some elements in [#58](https://github.com/ebbypeter) in [#45](https://github.com/plantuml-stdlib/Archimate-PlantUML/pull/58)
+* Special shapes can be used for some elements in [#58](https://github.com/plantuml-stdlib/Archimate-PlantUML/pull/58)
 * Bugfix: use `%true()` and `%false()` instead of `true` and `false` (included in #58)
 
 ## Release v1.2.0 ➡️ v3.2.0