minor #17557 [Doctrine] Update doctrine.rst (alex00ds)

This PR was merged into the 6.2 branch.

Discussion
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[Doctrine] Update doctrine.rst

An example of MapEntity Options "exclude" have a wrong paragraph formatting (this is : when :: is expected). An example of MapEntity Options "mapping" contains a property is not synced with a placeholder (there is no 'date' in the route).

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Commits
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5ce20ac Update doctrine.rst

Author: javiereguiluz

doctrine.rst

@@ -768,7 +768,7 @@ control behavior:
 
         #[Route('/product/{category}/{slug}/comments/{comment_slug}')]
         public function show(
-            #[MapEntity(mapping: ['date' => 'date', 'slug' => 'slug'])]
+            #[MapEntity(mapping: ['category' => 'category', 'slug' => 'slug'])]
             Product $product
             #[MapEntity(mapping: ['comment_slug' => 'slug'])]
             Comment $comment
@@ -777,7 +777,7 @@ control behavior:
 
 ``exclude``
     Configures the properties that should be used in the ``findOneBy()``
-    method by *excluding* one or more properties so that not *all* are used:
+    method by *excluding* one or more properties so that not *all* are used::
 
         #[Route('/product/{slug}/{date}')]
         public function show(