Update docs

api/components/base/blocker_api.md

@@ -2,14 +2,24 @@
 
 > at /druid/base/blocker.lua
 
+Druid component for block input. Use it to block input in special zone.
+
+### Setup
+Create blocker component with druid: `druid:new_blocker(node_name)`
+
+### Notes
+- Blocker can be used to create safe zones, where you have big buttons
+- Blocker will capture all input events that hit the node, preventing them from reaching other components
+- Blocker works placed as usual component in stack, so any other component can be placed on top of it and will work as usual
 
 ## Functions
+
 - [init](#init)
 - [set_enabled](#set_enabled)
 - [is_enabled](#is_enabled)
 
-
 ## Fields
+
 - [node](#node)
 
 
@@ -21,6 +31,8 @@
 blocker:init(node)
 ```
 
+The Blocker constructor
+
 - **Parameters:**
 	- `node` *(string|node)*: The node to use as a blocker
 
@@ -54,5 +66,5 @@ Get blocker enabled state
 
 ## Fields
 <a name="node"></a>
-- **node** (_node_)
+- **node** (_node_): The node that will block input