Update file header placeholders documentation to match the code (#1737)

README.md

@@ -826,9 +826,9 @@ It is common practice to include the file name, creation date and/or the current
 * `{file}` - the name of the file
 * `{year}` - the current year
 * `{created}` - the date on which the file was created
-* `{created.name}` - the name of the user who first committed the file
-* `{created.email}` - the email of the user who first committed the file 
 * `{created.year}` - the year in which the file was created
+* `{author.name}` - the name of the user who first committed the file
+* `{author.email}` - the email of the user who first committed the file 
 
 For example, a header template of:
 
@@ -844,7 +844,7 @@ Will be formatted as:
 // Created by John Smith on 01/02/2016.
 ```
 
-**NOTE:** the `{year}` value and `{created}` date format are determined from the current locale and timezone of the machine running the script. `{created.name}` and `{created.email}` requires the project to be version controlled by git.
+**NOTE:** the `{year}` value and `{created}` date format are determined from the current locale and timezone of the machine running the script. `{author.name}` and `{author.email}` requires the project to be version controlled by git.
 
 
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