Move pic around and reduce dist size

Author: octref

.vscodeignore

@@ -1,4 +1,2 @@
-.vscode/**
-**/*.map
-.gitignore
-tsconfig.json
+.vscode
+demo

README.md

@@ -2,7 +2,7 @@
 
 Polaroid for your code 📸.
 
-![usage](./img/usage.gif)
+![usage](./demo/usage.gif)
 
 By [Pine](https://github.com/octref) & [Peng](https://github.com/rebornix) from VS Code team.
 Happy Coding!
@@ -21,12 +21,12 @@ The code has to look right.
 - [Nord Theme](https://github.com/arcticicestudio/nord-visual-studio-code)
 - [Input Mono](http://input.fontbureau.com)
 
-![demo1](./img/demo1.png)
+![demo1](./demo/1.png)
 
 - [Material Theme](https://marketplace.visualstudio.com/items?itemName=Equinusocio.vsc-material-theme) with Palenight Accent
 - [Fira Code](https://github.com/tonsky/FiraCode) with ligature
 
-![demo2](./img/demo2.png)
+![demo2](./demo/2.png)
 
 ## Credit
 

img/demo1.png renamed to demo/1.png

@@ -15,7 +15,7 @@
     "color": "#fbfbfb",
     "theme": "light"
   },
-  "icon": "img/icon.png",
+  "icon": "icon.png",
   "categories": ["Other"],
   "activationEvents": ["onCommand:polacode.activate"],
   "main": "./out/src/extension",