Update README.md and add test

packages/babel-plugin-transform-block-scoped-functions/README.md

@@ -20,11 +20,10 @@ name("Steve");
 
 ```javascript
 {
-  var _name = function _name(n) {
+  let name = function (n) {
     return n;
   };
 }
-
 name("Steve");
 ```
 

packages/babel-plugin-transform-block-scoped-functions/test/fixtures/block-scoped-functions/basic/input.js

@@ -0,0 +1,7 @@
+{
+  function name (n) {
+    return n;
+  }
+}
+
+name("Steve");

packages/babel-plugin-transform-block-scoped-functions/test/fixtures/block-scoped-functions/basic/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-block-scoped-functions"]
+}

packages/babel-plugin-transform-block-scoped-functions/test/fixtures/block-scoped-functions/basic/output.js

@@ -0,0 +1,6 @@
+{
+  let name = function (n) {
+    return n;
+  };
+}
+name("Steve");

packages/babel-plugin-transform-block-scoped-functions/test/index.js

@@ -0,0 +1,3 @@
+import runner from "@babel/helper-plugin-test-runner";
+
+runner(__dirname);