diff --git a/Readme.md b/Readme.md
new file mode 100644
index 0000000..8a565df
--- /dev/null
+++ b/Readme.md
@@ -0,0 +1,33 @@
+# Geodes Library
+
+Register a geode:
+
+geodes_lib:register_geode({
+    wherein = node in which geodes generate, set to mapgen_stone unless you need it to spawn in a specific place,
+    y_min = minimum level at which geodes generate,
+    y_max = maximum level at which geodes generate,
+    scarcity = rarity of geodes, rarest at 80, lower values not recommended unless you use generation chance,
+    core = node comprising innermost part of geode, usually a crystal such as amethyst,
+    core_alt = replacement for node comprising innermost part of geode, usually a budding node which spawns plantlike drawtype crystal nodes on all sides,
+    core_alt_chance = chance of core_alt replacing core,
+    shell = array of nodes comprising geode shell, from outermost to innermost,
+    radius_min = minimum radius of geode cavity,
+    radius_max = maximum radius of geode cavity,
+	generation_chance = % chance a geode spawns given other conditions, lets geodes be even rarer,
+})
+
+Example:
+
+geodes_lib:register_geode({
+    wherein = "mapgen_stone",
+    y_min = -31000,
+    y_max = -10,
+    scarcity = 80,
+    core = "modname:citrine",
+    core_alt = "modname:citrine_budding",
+    core_alt_chance = 100,
+    shell = {"modname:limestone", "modname:calcite"},
+    radius_min = 2,
+    radius_max = 10,
+	generation_chance = 50, -- set to around 10 if you are adding 20 or more geodes this way
+})
diff --git a/init.lua b/init.lua
index cb0ce6c..bd208e6 100644
--- a/init.lua
+++ b/init.lua
@@ -60,10 +60,7 @@ function geodes_lib:register_geode(data)
     local shell = data.shell
     local radius_min = data.radius_min
     local radius_max = data.radius_max
-    local generation_chance = data.generation_chance or 100-- added line
-	--[[if not generation_chance or type(generation_chance) ~= "number" or generation_chance <= 0 then
-    generation_chance = 100
-end--]]
+    local generation_chance = data.generation_chance or 100
     
     minetest.register_node(core.."_technical_mapgen", {
     })
diff --git a/license.txt b/license.txt
index 369b3e7..87c106e 100644
--- a/license.txt
+++ b/license.txt
@@ -1,4 +1,5 @@
 Parts of code are taken from geodes mod by AwesomeDragon97, licensed under LGPL3.0
+Additions by backdaniel and JoeEnderman
 
 GNU LESSER GENERAL PUBLIC LICENSE
 Version 3, 29 June 2007
diff --git a/mod.conf b/mod.conf
index e0c87e5..d13d544 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1,5 +1,4 @@
 name=geodes_lib
-release = 16620
 author = alerikaisattera
 description = API/library for creating geodes
 title = Geodes Library