api readme and dep info

TerraForgedAPI/README.md

@@ -0,0 +1,23 @@
+# TerraForgedAPI
+
+### Dependency
+```groovy
+repositories {
+    maven { 
+        url "https://io.terraforged.com/repository/maven/" 
+    }
+}
+
+dependencies {
+    implementation "com.terraforged:TerraForgedAPI:0.0.1-mc1.15.2:deobf@jar"
+}
+```
+
+### Usage
+
+TerraForged fires a number of setup events each time its chunk generator is created. These events expose certain
+components of the generator allowing for world-gen content to be configured, modified, or added to.
+
+See the `com.terraforged.api.TerraEvent` class for the available events.
+
+All events are fired on the `FORGE` event bus.