Added add_type

content/docs/api/db/type/contents.lr

@@ -37,7 +37,7 @@ class MyThingType(Type):
         return raw.value
 
 def setup_env(self, **extra):
-    self.env.types['mything'] = MyThingType
+    self.env.add_type(MyThingType)
 ```
 
 For more information see [value_from_raw :ref](value-from-raw/).

content/docs/api/db/type/value-from-raw/contents.lr

@@ -36,7 +36,7 @@ class LocationType(Type):
         return (lng, lat)
 
 def setup_env(self, **extra):
-    self.env.types['location'] = LocationType
+    self.env.add_type(LocationType)
 ```
 
 ## Raw Value

content/docs/api/environment/add-type/contents.lr

@@ -0,0 +1,28 @@
+title: add_type
+---
+signature: type
+---
+summary: Adds a new field type to the environment.
+---
+type: method
+---
+version_added: 2.0
+---
+body:
+
+This registers a new [Field Type :ref](../../db/type/) with the environment
+
+## Example
+
+```python
+from lektor.types import Type
+
+class MyThingType(Type):
+    widget = 'singleline-text'
+
+    def value_from_raw(self, raw):
+        return raw.value
+
+def setup_env(self, **extra):
+    self.env.add_type(MyThingType)
+```