modify readme

sqlfun/readme.md

@@ -1,11 +1,11 @@
 This document explains the structure used to document a database function in the JSON format.
 The property suffixed with * is required in the json document.
 
-Under the database vendor directory, each json file describles the syntax of a function.
+Under the database vendor directory, each json file describes the syntax of a function.
 
 ### funcName*
 Name of the function. Function has the same name but has the different arguments syntax will be documented
-in the different file. 
+in a different file. 
 
 ### arguments*
 Array of the argument object. This list is empty when a function has no argument.
@@ -71,7 +71,6 @@ The online document for this function.
 ### sample
 Sample SQL including this function.
 
-
 This is an example of the json code that represents the ASCII function in SQL Server database.
 
 ```json