Documentation update

- Very minimal API documentation. The code should be self explanatory.

- LICENSE information.

LICENSE.md

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+License
+=======
+- Code	WTFPL
+- Texture	CC

README.md

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+# Vines
+
+## Features
+- Rope block for spawning rope that slowly drops into the deep.
+- Vines are climbable and slowly grow downward.
+- Shears that allow the collecting of vines.
+- Spawns vines on jungletree leaves.
+- Roots on the bottom of dirt and dirt with grass nodes.
+- Spawns vines on trees located in swampy area.
+- Jungle vines that spawn on the side of jungletrees
+
+## API
+The API is very minimal. It allows the registering of vines.
+
+There are two types of vines. One that spawns at the bottom of nodes and uses the
+plantlike drawtype, and vines that spawn on the side that use signlike
+drawtype.
+
+### Example
+*taken from mod*
+
+```lua
+  vines.register_vine( 'vine', {
+    description = "Vines",
+    is_side_vine = false,
+    average_length = 9
+  }, biome )
+```
+
+|key|           type|  description|
+|---|           ---|   ---|
+|description|   string|The node tooltip description|
+|is_side_vine|  bool|  If not a side vine it is a plantlike drawtype bottom vine|
+|average_length|int|   The average length of vines|
+|biome|         table| A plants_lib biome format (see plants_lib documentation)|
+
+## Notice
+Vines use after_destruct on registered leave nodes to remove vines from which
+the leaves are removed. This is done by using the override function.
+Malfunctions may occur if other mods override the after_destruct of these nodes
+also.