Add link to new rule in readme

Author: Ross Solomon

README.md

@@ -120,6 +120,7 @@ Finally, enable all of the rules that you would like to use.  Use [our preset](#
 
 * [react/jsx-boolean-value](docs/rules/jsx-boolean-value.md): Enforce boolean attributes notation in JSX (fixable)
 * [react/jsx-closing-bracket-location](docs/rules/jsx-closing-bracket-location.md): Validate closing bracket location in JSX (fixable)
+* [react/jsx-closing-tag-location](docs/rules/jsx-closing-tag-location.md): Validate closing tag location in JSX (fixable)
 * [react/jsx-curly-spacing](docs/rules/jsx-curly-spacing.md): Enforce or disallow spaces inside of curly braces in JSX attributes (fixable)
 * [react/jsx-equals-spacing](docs/rules/jsx-equals-spacing.md): Enforce or disallow spaces around equal signs in JSX attributes (fixable)
 * [react/jsx-filename-extension](docs/rules/jsx-filename-extension.md): Restrict file extensions that may contain JSX