Update README.md

README.md

@@ -11,14 +11,15 @@ A clickable interactive mandelbrot set, made with Python 3, PIL, and Tkinter. Us
 6. Middle-click to save the image
 
 ## Commandline options
+    -h, --help               Command-line help dialogue.
     -i, --iterations         Number of iterations done for each pixel. Higher is more accurate but slower.
     -x                       The x-center coordinate of the frame.
     -y                       The y-center coordinate of the frame.
     -m, --magnification      The magnification level of the frame. Scientific notation (e.g. 3E-4) is permitted.
-    -wi, --width         The number of pixels wide the image is.
-    -he, --height         The number of pixels high the image is.
+    -wi, --width             The number of pixels wide the image is.
+    -he, --height            The number of pixels high the image is.
     -s, --save               Flag to save the generated image.
     -nm, --noMulti           Flag to not use multiprocessing.
 
 ## Mandelbrot Set feature rendered by this program
-<img src="https://raw.githubusercontent.com/rosslh/Interactive-Python-Mandelbrot/master/pictures/image.png" width="80%">
+<img src="https://raw.githubusercontent.com/rosslh/Interactive-Python-Mandelbrot/master/pictures/image.png" width="100%">