minor #11064 Fix "API Platform" case and various relative fixes (dunglas)

This PR was squashed before being merged into the 4.2 branch (closes #11064).

Discussion
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Fix "API Platform" case and various relative fixes

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Tweak a bit API Platform related parts

Commits
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a849ebf Fix \"API Platform\" case and various relative fixes

Author: javiereguiluz

components/serializer.rst

@@ -1424,7 +1424,7 @@ Learn more
 .. seealso::
 
     Normalizers for the Symfony Serializer Component supporting popular web API formats
-    (JSON-LD, GraphQL, HAL and JSONAPI) are available as part of the `API Platform`_ project.
+    (JSON-LD, GraphQL, OpenAPI, HAL, JSON:API) are available as part of the `API Platform`_ project.
 
 .. seealso::
 

quick_tour/flex_recipes.rst

@@ -174,7 +174,7 @@ Are you building an API? You can already return JSON easily from any controller:
         }
     }
 
-But for a *truly* rich API, try installing `Api Platform`_:
+But for a *truly* rich API, try installing `API Platform`_:
 
 .. code-block:: terminal
 
@@ -259,5 +259,5 @@ build features *without* sacrificing code quality or performance. It's all about
 the service container, and it's Symfony's super power. Read on: about :doc:`/quick_tour/the_architecture`.
 
 .. _`https://flex.symfony.com`: https://flex.symfony.com
-.. _`Api Platform`: https://api-platform.com/
+.. _`API Platform`: https://api-platform.com/
 .. _`Twig`: https://twig.symfony.com/

serializer.rst

@@ -202,8 +202,19 @@ value:
 Going Further with the Serializer
 ---------------------------------
 
-`ApiPlatform`_ provides an API system supporting `JSON-LD`_ and `Hydra Core Vocabulary`_
-hypermedia formats. It is built on top of the Symfony Framework and its Serializer
+`API Platform`_ provides an API system supporting the following formats:
+
+* `JSON-LD`_ along with the `Hydra Core Vocabulary`_
+* `OpenAPI`_ v2 (formerly Swagger) and v3
+* `GraphQL`_
+* `JSON:API`_
+* `HAL`_
+* JSON
+* XML
+* YAML
+* CSV
+
+It is built on top of the Symfony Framework and its Serializer
 component. It provides custom normalizers and a custom encoder, custom metadata
 and a caching system.
 
@@ -218,7 +229,11 @@ take a look at how this bundle works.
     serializer/custom_normalizer
 
 .. _`APCu`: https://github.com/krakjoe/apcu
-.. _`ApiPlatform`: https://github.com/api-platform/core
+.. _`API Platform`: https://api-platform.com
 .. _`JSON-LD`: http://json-ld.org
 .. _`Hydra Core Vocabulary`: http://hydra-cg.com
+.. _`OpenAPI`: https://www.openapis.org
+.. _`GraphQL`: https://graphql.org
+.. _`JSON:API`: https://jsonapi.org
+.. _`HAL`: http://stateless.co/hal_specification.html
 .. _`Data URIs`: https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs