Update docs/release_notes/ibexa_dxp_v5.0_deprecations.md

Co-authored-by: Marek Nocoń <[email protected]>

Author: adriendupuis

docs/release_notes/ibexa_dxp_v5.0_deprecations.md

@@ -315,7 +315,7 @@ Support for facet search has been dropped, use the `Aggregation` API instead.
 !!! note "Dropped single colon notation"
 
     [[= product_name_base =]]-named controllers can no longer be referenced using a single-colon notation.
-    For example, `ibexa_content::viewAction` must be changed to `ibexa_content::viewAction`.
+    For example, `ibexa_content:viewAction` must be changed to `ibexa_content::viewAction`.
 
     The change affects the following controllers: