add docstring

camera/counter_people.py

@@ -38,7 +38,9 @@ def detector(image):
 
     return result
 
-def argsParser():
+def args_parser():
+    ''' images, videos, remote or a local camera feed allowed
+        verbose for added debugging'''
     ap = argparse.ArgumentParser()
     ap.add_argument("-i", "--image", default=None, 
                     help="path to image test file directory")
@@ -167,7 +169,7 @@ def detectPeople(args):
 
 
 def main():
-    args = argsParser()
+    args = args_parser()
     detectPeople(args)