Document most methods and options in README

README.md

@@ -90,6 +90,59 @@ const realm = new Realm({schema: [Person]});
 
 You can see more examples of how to use these APIs in the [ReactExample](https://github.com/realm/realm-js/tree/master/examples/ReactExample) app and in the [JS test files](https://github.com/realm/realm-js/tree/master/tests).
 
+## Documentation
+### `Realm` Constructor Options
+- `path` – defaults to `Realm.defaultPath` (which initially is `'Documents/default.realm'`)
+- `schema` – array of object type definitions (see below, optional if realm already created)
+- `schemaVersion` – defaults to `0` (should be incremented after changing the schema)
+
+### Object Types
+- `name` – string used to refer to this object type
+- `primaryKey` – optional name of `STRING` or `INT` property that should be unique
+- `properties` – array of property defitions (see below)
+
+### Property Types
+When definining object `properties` in a `schema`, each should have a unique `name`, and the `type` of each property must be defined as either the name of an object type in the same schema **or** as one of the following:
+
+- `Realm.Types.BOOL`
+- `Realm.Types.INT`
+- `Realm.Types.FLOAT`
+- `Realm.Types.DOUBLE`
+- `Realm.Types.STRING`
+- `Realm.Types.DATE`
+- `Realm.Types.DATA`
+- `Realm.Types.OBJECT` (requires `objectType`, is always `optional`)
+- `Realm.Types.LIST` (requires `objectType`, is never `optional`)
+
+You _may_ specify these property options as well:
+
+- `default` – default value when property was not specified on creation
+- `optional` – boolean indicating if this property may be assigned `null` or `undefined`
+
+### `Realm` Instance Methods
+#### `create(type, props, update)`
+- `type` – string matching object `name` in the `schema` definition
+- `props` – object with property values for all required properties without a default value
+- `update` – optional boolean signaling that an existing object (matching primary key) should be updated
+- _Returns a new realm object instance_
+
+#### `delete(object)`
+- `object` – realm object or array of realm objects (which can be a `List` or `Results` object)
+
+#### `deleteAll()`
+**WARNING:** This does what you think it does!
+
+#### `objects(type, query)`
+- `type` – string matching object `name` in the `schema` definition
+- `query` – optional string that defines a query to filter results (see tests for examples)
+- _Returns `Results` object_
+
+#### `write(callback)`
+- `callback` – function that is synchronously called inside the write transaction
+
+#### `close()`
+**WARNING:** This is only for advanced use cases and generally doesn't need to be used.
+
 ## License
 Copyright 2015 Realm Inc - All Rights Reserved
 Proprietary and Confidential