Add missed parenthesis and semicolon (ronreiter#714)

Author: appleplectic

Diff for: tutorials/learn-js.org/en/Promises.md

@@ -33,7 +33,7 @@ To make the code above work, we will need to write the function in the following
 
         result.then(function(status) {
             console.log("The status from the server is: ", status.ok);
-        }
+        });
     }
 
 Notice that we used the `then` function here, which is one of the methods of a `Promise`.
@@ -166,4 +166,4 @@ Solution
     upperCaseAsync("steve").then(console.log);
     upperCaseAsync(null).catch((x) => {
         console.log("No string received!");
-    });
+    });