Minor changes

Author: javiereguiluz

reference/constraints/Locale.rst

@@ -3,10 +3,10 @@ Locale
 
 Validates that a value is a valid locale.
 
-The "value" for each locale is any of `ICU format locale IDs`. By instance the two
-letter `ISO 639-1`_ *language* code (e.g. ``fr``), or the language code followed
-by an underscore (``_``), then the `ISO 3166-1 alpha-2`_ *country* code (e.g. ``fr_FR``
-for French/France).
+The "value" for each locale is any of `ICU format locale IDs`_. For example, the
+two letter `ISO 639-1`_ *language* code (e.g. ``fr``), or the language code
+followed by an underscore (``_``) and the `ISO 3166-1 alpha-2`_ *country* code
+(e.g. ``fr_FR`` for French/France).
 
 +----------------+------------------------------------------------------------------------+
 | Applies to     | :ref:`property or method <validation-property-target>`                 |
@@ -103,12 +103,13 @@ canonicalize
 
 .. versionadded:: 4.1
     Using this option with value ``false`` was deprecated in Symfony 4.1 and it
-    will throw an exception in Symfony 5.0, use `true` instead.
+    will throw an exception in Symfony 5.0. Use ``true`` instead.
 
 If true, the :phpmethod:`Locale::canonicalize` method will be applied before checking
 the validity of the given locale (e.g. ``FR-fr.utf8`` is transformed into ``fr_FR``
 ).
 
+.. _`ICU format locale IDs`: http://userguide.icu-project.org/locale
 .. _`ISO 639-1`: https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes
 .. _`ISO 3166-1 alpha-2`: https://en.wikipedia.org/wiki/ISO_3166-1#Current_codes
 .. _`ICU format locale IDs`: http://userguide.icu-project.org/locale#TOC-Canonicalization