Add Examples

Examples.md

@@ -0,0 +1,57 @@
+# Examples
+
+### Hello World!
+```python
+import screen as s
+
+def draw():
+    s.cls(0)
+    s.text(20, 20, "Hello World!", 3)
+
+s.start({
+    "loop":{
+        "draw":draw
+    }
+})
+```
+
+### Falling ball
+```python
+import screen as s
+
+bg = 0
+color = 3
+radius = 0
+posx = 0
+posy = 0
+
+def init():
+    global radius, posx, posy
+    radius = s.W / 10
+    posx = s.W / 2
+    posy = s.H / 2
+
+def tapped(x, y, id):
+    global posx, posy
+    posx = x
+    posy = y
+    
+def update():
+    global posy
+    posy += 200 * s.DT
+
+def draw():
+    global radius, posx, posy, color, bg
+    s.cls(bg)
+    s.circfill(posx, posy, radius, color)
+    s.text(10, 10, 'Tap anywhere', 3)
+
+s.start({
+    "loop":{
+        "init":init,
+        "draw":draw,
+        "tapped":tapped,
+        "update":update
+    }
+})
+```