Fix README

README.md

@@ -1,10 +1,12 @@
-=== unstick
+unstick
+=======
 
 Unstick Line Sticker from the shop!
 
 You always wanted to get those PNG from Line Sticker store? Unstick it with this simple node script.
 
-== Install
+Install
+-------
 
 Checkout this repo and then
 
@@ -12,7 +14,8 @@ Checkout this repo and then
 npm install
 ```
 
-== Usage
+Usage
+-----
 
 Run this script with a line store url as a parameter like