Merge pull request #5279 from greg0ire/fix-headings

Nest deprecations for 3.4 under 3.4

UPGRADE.md

@@ -8,7 +8,7 @@ awareness about deprecated code.
 
 # Upgrade to 3.4
 
-# Deprecated `AbstractPlatform` schema introspection methods
+## Deprecated `AbstractPlatform` schema introspection methods
 
 The following schema introspection methods have been deprecated:
 
@@ -19,22 +19,22 @@ The following schema introspection methods have been deprecated:
 
 The queries used for schema introspection are an internal implementation detail of the DBAL.
 
-# Deprecated `collate` option for MySQL
+## Deprecated `collate` option for MySQL
 
 This undocumented option is deprecated in favor of `collation`.
 
-# Deprecated `AbstractPlatform::getListTableConstraintsSQL()`
+## Deprecated `AbstractPlatform::getListTableConstraintsSQL()`
 
 This method is unused by the DBAL since 2.0.
 
-# Deprecated `Type::getName()`
+## Deprecated `Type::getName()`
 
 This will method is not useful for the DBAL anymore, and will be removed in 4.0.
 As a consequence, depending on the name of a type being `json` for `jsonb` to
 be used for the Postgres platform is deprecated in favor of extending
 `Doctrine\DBAL\Types\JsonType`.
 
-# Deprecated `AbstractPlatform::getColumnComment()` and `AbstractPlatform::getDoctrineTypeComment()`
+## Deprecated `AbstractPlatform::getColumnComment()` and `AbstractPlatform::getDoctrineTypeComment()`
 
 DBAL no longer needs column comments to ensure proper diffing. Note that both
 methods should probably have been marked as internal as these comments were an