Clean up README

README.md

@@ -1,83 +1,30 @@
 ## Sneeker mod for Minetest
 
----
 ### Description:
 
 An explosive nuisance for [Minetest](http://minetest.net/).
 
 ![screenshot](screenshot.png)
 
----
 ### Licensing:
 
 - Code: [MIT](LICENSE.txt)
   - Original by Rui: WTFPL
 - tnt_function code: [MIT](tnt_function.lua)
 
----
 ### Usage:
 
-Settings:
+Settings documented in [reference][].
-- ***sneeker.lifetime***
-  - How long (in seconds) sneeker remains in world after spawn.
-  - type: int
-  - default: 900 (15 minutes)
-- ***sneeker.boom_gain***
-  - Loudness of explosion.
-  - type: float
-  - default: 1.5
-- ***sneeker.spawn_require_player_nearby***
-  - Determines whether or not a player must be close for spawn to occur.
-  - type: bool
-  - default: true
-- ***sneeker.spawn_player_radius***
-  - Distance a player must be within for spawn to occur.
-  - type: int
-  - default: 100
-- ***sneeker.despawn_player_far***
-  - If enabled, mobs not near any players will despawn.
-  - type: bool
-  - default: true
-- ***sneeker.despawn_player_radius***
-  - Distance determining if a player is near enough to prevent despawn.
-  - type: int
-  - default: 500
-- ***sneeker.spawn_chance***
-  - Sets possibility for spawn.
-  - type: int
-  - default: 10000
-- ***sneeker.spawn_interval***
-  - Sets frequency of spawn chance.
-  - type: int
-  - default: 240 (4 minutes)
-- ***sneeker.spawn_minlight***
-  - Sets the minimum light that a node must have for spawn to occur.
-  - type: int
-  - default: 0
-- ***sneeker.spawn_maxlight***
-  - Sets the maximum light that a node can have for spawn to occur.
-  - type: int
-  - default: 4
-- ***sneeker.spawn_minheight***
-  - Sets the maximum light that a node can have for spawn to occur.
-  - type: int
-  - default: -31000
-- ***sneeker.spawn_maxheight***
-  - Sets the lowest position at which sneeker can spawn.
-  - type: int
-  - default 31000
-- ***sneeker.spawn_mapblock_limit***
-  - Limits the number of entities that can spawn per mapblock (16x16x16).
-  - type: int
-  - default: 1
 
----
 ### Links:
 
-- [![ContentDB]()](https://content.minetest.net/packages/AntumDeluge/sneeker/)
+- [![ContentDB](https://img.shields.io/static/v1?label=ContentDB&message=sneeker&color=%23375a7f&logo=minetest)](https://content.minetest.net/packages/AntumDeluge/sneeker/)
 - [Forum thread](https://forum.minetest.net/viewtopic.php?t=26685)
 - [Original forum thread](https://forum.minetest.net/viewtopic.php?t=11891)
 - [Git repo](https://github.com/AntumMT/mod-sneeker)
-- [Reference](https://antummt.github.io/mod-sneeker/docs/reference/)
+- [Reference][reference]
 - [Changelog](changelog.txt)
 - [TODO](TODO.txt)
+
+
+[reference]: https://antummt.github.io/mod-sneeker/docs/reference/