Update jsx-filename-extension.md

* Trailing comma is causing .json file stops working * Trailing comma is supported in .eslintrc.js only
jsx-eslint · May 6, 2017 · b35386b · b35386b
1 parent ee8d3a1
commit b35386b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/rules/jsx-filename-extension.md b/docs/rules/jsx-filename-extension.md
@@ -26,7 +26,7 @@ The set of allowed extensions is configurable. By default '.jsx' is allowed. If
 
 ```js
 "rules": {
-  "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }],
+  "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }]
 }
 ```