diff --git a/README.md b/README.md
index d59a4fd9f3e57eb7535b8bff487f9f9d3acc0e6d..7972a6f49ec93f5aa33858a95506e5340a9294dd 100644
--- a/README.md
+++ b/README.md
@@ -109,9 +109,9 @@ AppleHealthKit.initHealthKit(null: Object, (err: string, res: Object) => {
 
   ...
 
-  let options = {value: 200};
+  let options = { value: 200 };
   AppleHealthKit.saveWeight(options: Object, (err: Object, res: Object) => {
-      if(err){
+      if (err) {
           console.log("error saving weight to healthkit: ", err);
           return;
       }
diff --git a/constants.js b/constants.js
index 34427d01440163742b4b910b5c8bfc8edc26523c..4b74d04303b8b88c6ac3f8fd904a7c0a767b4f31 100644
--- a/constants.js
+++ b/constants.js
@@ -1,5 +1,9 @@
 'use strict'
 
+/**
+ * Apple Health Permissions
+ * @type {Object}
+ */
 const PERMISSIONS = {
 	DateOfBirth: 'DateOfBirth',
 	BiologicalSex: 'BiologicalSex',
@@ -28,7 +32,9 @@ const PERMISSIONS = {
 	SleepAnalysis: 'SleepAnalysis',
 };
 
-
+/**
+ * Unit Request Types
+ */
 const UNITS = {
 	gram: 'gram',
 	pound: 'pound',
@@ -52,8 +58,6 @@ const UNITS = {
 	mgPerdL: 'mgPerdL',
 };
 
-
-
 const CONSTANTS = {
 	Permissions: PERMISSIONS,
 	Units: UNITS,