add else to docs

README.md

@@ -637,6 +637,29 @@
     }
     ```
 
+  - If you're using multi-line blocks with `if` and `else`, put `else` on the same line as your
+    `if` block's closing brace.
+
+    ```javascript
+    // bad
+    if (test) {
+      thing1();
+      thing2();
+    }
+    else {
+      thing3();
+    }
+
+    // good
+    if (test) {
+      thing1();
+      thing2();
+    } else {
+      thing3();
+    }
+    ```
+
+
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