Update manifest and readme for Object Pool package

Author: gekidoslair

README.md

@@ -1,2 +1,26 @@
 # com.pixelwizards.objectpool
+
 Object pooling system for Unity.
+
+Documentation is online:
+https://www.megacrush.app/api/object-pool
+
+No editor-facing functionality.
+
+Create new Object pools with:
+
+GameObject prefab;
+
+PoolManager.AddNewObjectPool(new PoolObjectSetting()
+{
+	count = 10,
+	prefab = prefab,
+});
+
+Get an instance from the Pool:
+
+var instance = PoolManager.GetInstance(prefab);
+
+Return the Instance to the Pool:
+
+PoolManager.ReturnInstance(thisObject);

package.json

@@ -3,7 +3,7 @@
   "displayName": "Object Pooling",
   "version": "1.0.0",
   "unity": "2018.4",
-  "description": "Powerful Object Pooling system.",
+  "description": "Powerful Object Pooling system.\n\nDocumentation is online: \nhttps://www.megacrush.app/api/object-pool\n\nNo editor-facing functionality.",
   "category": null,
   "author": {
     "name": "Megacrush Interactive",