add readme example

Author: abhikpal

readme_example.py

@@ -0,0 +1,28 @@
+from p5 import *
+recording = True
+
+def setup():
+    size(640, 360)
+    no_stroke()
+    background(204)
+
+def draw():
+    if not recording:
+        return
+
+    if mouse_is_pressed:
+        fill(random_uniform(255), random_uniform(127), random_uniform(51), 127)
+    else:
+        fill(255, 15)
+
+    circle_size = random_uniform(low=10, high=80)
+
+    circle((mouse_x, mouse_y), circle_size)
+
+def key_pressed(event):
+    global recording
+    if event.key == 'SPACE':
+        recording = not recording
+    background(204)
+
+run()