Small improvements to the documentation comments (no code change)

Author: ygoe

README.md

@@ -14,7 +14,7 @@ MessagePack is an efficient binary serialisation format. It lets you exchange da
 
 ## Size
 
-This library is very lightweight. The source code has around **510 lines** (incl. browser/Node detection), the minified file has 6.6 kB and can be GZip-compressed to **2.4 kB**.
+This library is very lightweight. The source code has around **560 lines** (incl. browser/Node detection), the minified file has 7.0 kB and can be GZip-compressed to **2.7 kB**.
 
 ## Performance
 
@@ -57,7 +57,7 @@ If there should be a naming conflict with another library you want to load, you
 In Node.js, these functions are exported in the object you get from the `require` function.
 
 ```js
-var msgpack = require('@ygoe/msgpack');
+var msgpack = require("@ygoe/msgpack");
 ```
 
 ### Example

msgpack.js

@@ -4,9 +4,11 @@
 	// Serializes a value to a MessagePack byte array.
 	//
 	// data: The value to serialize. This can be a scalar, array or object.
-	// options: An object that defined additional options.
-	// - multiple: Indicates whether multiple values in data are concatenated to multiple MessagePack arrays.
-	// - invalidTypeReplacement: The value that is used to replace values of unsupported types, or a function that returns such a value, given the original value as parameter.
+	// options: An object that defines additional options.
+	// - multiple: (boolean) Indicates whether multiple values in data are concatenated to multiple MessagePack arrays. Default: false.
+	// - invalidTypeReplacement:
+	//   (any) The value that is used to replace values of unsupported types.
+	//   (function) A function that returns such a value, given the original value as parameter.
 	function serialize(data, options) {
 		if (options && options.multiple && !Array.isArray(data)) {
 			throw new Error("Invalid argument type: Expected an Array to serialize multiple values.");
@@ -267,8 +269,8 @@
 	// Deserializes a MessagePack byte array to a value.
 	//
 	// array: The MessagePack byte array to deserialize. This must be an Array or Uint8Array containing bytes, not a string.
-	// options: An object that defined additional options.
-	// - multiple: Indicates whether multiple concatenated MessagePack arrays are returned as an array.
+	// options: An object that defines additional options.
+	// - multiple: (boolean) Indicates whether multiple concatenated MessagePack arrays are returned as an array. Default: false.
 	function deserialize(array, options) {
 		const pow32 = 0x100000000;   // 2^32
 		let pos = 0;