Added docs for beforeSubmit and afterSubmit (TOC)

Author: erikras

README.md

@@ -168,7 +168,9 @@ const MyForm = () => (
   - [`version: string`](#version-string)
 - [Types](#types)
   - [`FieldProps`](#fieldprops)
+    - [`afterSubmit?: () => void`](#aftersubmit---void)
     - [`allowNull?: boolean`](#allownull-boolean)
+    - [`beforeSubmit?: () => void | false`](#beforesubmit---void--false)
     - [`children?: ((props: FieldRenderProps) => React.Node) | React.Node`](#children-props-fieldrenderprops--reactnode--reactnode)
     - [`component?: React.ComponentType<FieldRenderProps> | string`](#component-reactcomponenttypefieldrenderprops--string)
     - [`defaultValue?: any`](#defaultvalue-any)
@@ -219,15 +221,8 @@ const MyForm = () => (
     - [`validate?: (values: Object) => Object | Promise<Object>`](#validate-values-object--object--promiseobject)
     - [`validateOnBlur?: boolean`](#validateonblur-boolean)
   - [`FormRenderProps`](#formrenderprops)
-    - [`batch: (fn: () => void) => void)`](#batch-fn---void--void)
-    - [`blur: (name: string) => void`](#blur-name-string--void)
-    - [`change: (name: string, value: any) => void`](#change-name-string-value-any--void)
-    - [`focus: (name: string) => void`](#focus-name-string--void)
     - [`form: FormApi`](#form-formapi)
     - [`handleSubmit: (?SyntheticEvent<HTMLFormElement>) => void`](#handlesubmit-syntheticeventhtmlformelement--void)
-    - [`initialize: (values: Object) => void`](#initialize-values-object--void)
-    - [`mutators?: { [string]: Function }`](#mutators--string-function-)
-    - [`reset: (newInitialValues?: Object) => void`](#reset-newinitialvalues-object--void)
   - [`FormSpyProps`](#formspyprops)
     - [`children?: ((props: FormSpyRenderProps) => React.Node) | React.Node`](#children-props-formspyrenderprops--reactnode--reactnode)
     - [`component?: React.ComponentType<FormSpyRenderProps>`](#component-reactcomponenttypeformspyrenderprops)