Fix comment and readme

README.md

@@ -17,7 +17,7 @@ Here is the full [Parse Server guide](https://github.com/ParsePlatform/parse-ser
 
 1. Give mongodb a blank directory to work with, and run it:
 
-    `c:\Program Files\MongoDB\Server\3.2\bin>mongod.exe --dbpath x:\temp\mongodata`
+    `mongod.exe --dbpath x:\temp\mongodata`
 
 1. Start up this server:
 
@@ -48,10 +48,6 @@ Here is the full [Parse Server guide](https://github.com/ParsePlatform/parse-ser
     and see the tables in the dashboard.
 
 
-### Cloud Code
-
-Normally you will only touch the "cloud code", found in cloud/main.js.
-
 ### Sample Queries
 
 ```

cloud/emails.js

@@ -24,8 +24,8 @@ function sendBookSavedEmailAsync(book) {
     return sendEmailAboutBookAsync(book, mail, process.env.EMAIL_BOOK_EVENT_RECIPIENT);
 }
 
-// Caller should have already filled in the from, to, subject, and content.
-// This adds metedata about the book and sends off the email.
+// Caller should have already filled in the from, subject, and (optionally) content.
+// This adds metadata about the book and sends off the email.
 function sendEmailAboutBookAsync(book, sendGridMail, toAddress) {
     return new Promise(function(resolve, reject) {
         try{