Merge pull request #106 from weskerfoot/docs

add help output to readme

README.md

@@ -26,6 +26,28 @@ git+https://github.com/weskerfoot/DeleteFB.git`
 4) Use the docker image (experimental) by running `make` after checking this repository out with git. There is also an image built and published automatically at `wjak56/deletefb:latest`
 
 ## How To Use It
+```
+usage: deletefb [-h] [-M {wall,unlike_pages,conversations}] -E EMAIL [-P PASSWORD] -U PROFILE_URL [-F TWO_FACTOR_TOKEN] [-H] [--no-archive] [-Y YEAR]
+                [-B CHROMEBIN]
+
+optional arguments:
+  -h, --help            show this help message and exit
+  -M {wall,unlike_pages,conversations}, --mode {wall,unlike_pages,conversations}
+                        The mode you want to run in. Default is `wall' which deletes wall posts
+  -E EMAIL, --email EMAIL
+                        Your email address associated with the account
+  -P PASSWORD, --password PASSWORD
+                        Your Facebook password
+  -U PROFILE_URL, --profile-url PROFILE_URL
+                        The link to your Facebook profile, e.g. https://www.facebook.com/your.name
+  -F TWO_FACTOR_TOKEN, --two-factor TWO_FACTOR_TOKEN
+                        The code generated by your 2FA device for Facebook
+  -H, --headless        Run browser in headless mode (no gui)
+  --no-archive          Turn off archiving (on by default)
+  -Y YEAR, --year YEAR  The year(s) you want posts deleted.
+  -B CHROMEBIN, --chromebin CHROMEBIN
+                        Optional path to the Google Chrome (or Chromium) binary
+```
 
 * Make sure that you have a recent version of Python 3.x installed (preferably
   3.6 or greater)