Fix Note boxes

reference/en/configuration.rst

@@ -70,7 +70,9 @@ as the credentials to use. The connection details can differ
 depending on the used driver. The following sections describe the
 options recognized by each built-in driver.
 
-    **NOTE** When using an existing PDO instance through the ``pdo``
+.. note::
+
+    When using an existing PDO instance through the ``pdo``
     option, specifying connection details is obviously not necessary.
 
 

reference/en/schema-manager.rst

@@ -16,7 +16,7 @@ the ``getSchemaManager()`` method:
 Now with the ``SchemaManager`` instance in ``$em`` you can use the
 available methods to learn about your database schema:
 
-    **NOTE**
+.. note::
 
     Parameters containing identifiers passed to the SchemaManager
     methods are *NOT* quoted automatically! Identifier quoting is

reference/en/types.rst

@@ -36,7 +36,7 @@ a type and it is not allowed to contain any state. Creation of type
 instances is abstracted through a static get method
 ``Doctrine\DBAL\Types\Type::getType()``.
 
-    **NOTE**
+.. note::
 
     See the `Known Vendor Issue <./../known-vendor-issues>`_ section
     for details about the different handling of microseconds and
@@ -63,7 +63,7 @@ If you want to change how Doctrine maps a database type to a
 ``AbstractPlatform::registerDoctrineTypeMapping($dbType, $doctrineType)``
 method to add new database types or overwrite existing ones.
 
-    **NOTE**
+.. note::
 
     You can only map a database type to exactly one Doctrine type.
     Database vendors that allow to define custom types like PostgreSql