add docs

docs/api/models/helpers/relations.md

@@ -17,7 +17,7 @@ aliases for proper sql joins.
 
 **Arguments**:
 
-- `field (ForeignKey class)`: relation field
+- `field` (`ForeignKey class`): relation field
 
 <a name="models.helpers.relations.register_many_to_many_relation_on_build"></a>
 #### register\_many\_to\_many\_relation\_on\_build
@@ -37,7 +37,7 @@ By default relation name is a model.name.lower().
 
 **Arguments**:
 
-- `field (ManyToManyField class)`: relation field
+- `field` (`ManyToManyField class`): relation field
 
 <a name="models.helpers.relations.expand_reverse_relationship"></a>
 #### expand\_reverse\_relationship
@@ -50,11 +50,11 @@ If the reverse relation has not been set before it's set here.
 
 **Arguments**:
 
-- `model_field ()`: 
+- `model_field`: 
 
 **Returns**:
 
-`(None)`: None
+`None`: None
 
 <a name="models.helpers.relations.expand_reverse_relationships"></a>
 #### expand\_reverse\_relationships
@@ -70,7 +70,7 @@ If the reverse relation has not been set before it's set here.
 
 **Arguments**:
 
-- `model (Model class)`: model on which relation should be checked and registered
+- `model` (`Model class`): model on which relation should be checked and registered
 
 <a name="models.helpers.relations.register_reverse_model_fields"></a>
 #### register\_reverse\_model\_fields
@@ -87,7 +87,7 @@ Autogenerated reverse fields also set related_name to the original field name.
 
 **Arguments**:
 
-- `model_field (relation Field)`: original relation ForeignKey field
+- `model_field` (`relation Field`): original relation ForeignKey field
 
 <a name="models.helpers.relations.register_through_shortcut_fields"></a>
 #### register\_through\_shortcut\_fields
@@ -100,7 +100,7 @@ Registers m2m relation through shortcut on both ends of the relation.
 
 **Arguments**:
 
-- `model_field (ManyToManyField)`: relation field defined in parent model
+- `model_field` (`ManyToManyField`): relation field defined in parent model
 
 <a name="models.helpers.relations.register_relation_in_alias_manager"></a>
 #### register\_relation\_in\_alias\_manager
@@ -119,7 +119,7 @@ fk - register_relation_on_build
 
 **Arguments**:
 
-- `field (ForeignKey or ManyToManyField class)`: relation field
+- `field` (`ForeignKey or ManyToManyField class`): relation field
 
 <a name="models.helpers.relations.verify_related_name_dont_duplicate"></a>
 #### verify\_related\_name\_dont\_duplicate
@@ -139,12 +139,12 @@ model
 
 **Arguments**:
 
-- `related_name ()`: 
-- `model_field (relation Field)`: original relation ForeignKey field
+- `related_name`: 
+- `model_field` (`relation Field`): original relation ForeignKey field
 
 **Returns**:
 
-`(None)`: None
+`None`: None
 
 <a name="models.helpers.relations.reverse_field_not_already_registered"></a>
 #### reverse\_field\_not\_already\_registered
@@ -162,9 +162,9 @@ related model
 
 **Arguments**:
 
-- `model_field (relation Field)`: original relation ForeignKey field
+- `model_field` (`relation Field`): original relation ForeignKey field
 
 **Returns**:
 
-`(bool)`: result of the check
+`bool`: result of the check