diff --git a/README.md b/README.md
index 0f8a522..c8ff6ca 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # chalk - a line based text editor
 
-Chalk is a line based text editor for the terminal. It was originally an integrated part of _colorsh_, a custom shell used for ssh accounts at [Colorfield Space](gopher://colorfield.space:70/). This repo adds features and develops it into a more full and usable application.
+Chalk is a line based text editor for the terminal. It was originally an integrated part of _colorsh_, a custom shell used for ssh accounts at [Colorfield Space](gopher://colorfield.space:70/). It has since been separated out as a standalone program usable anywhere with python3 and python3's readline (a batteries included feature of python3 for most operating systems).
 
 I tend to think about chalk as a simpler ed, similar to how some people use nano as simpler terminal editor than vi. It is far less powerful than ed, but functions in a similar line by line style with easy commands that walk you through the actions you are wanting to perform.
 
@@ -8,7 +8,10 @@ I tend to think about chalk as a simpler ed, similar to how some people use nano
 ## Requirements
 
 Requires Python 3.6+. No other Python dependencies, standard library only.
-Copy the file `chalk` to anywhere on your system path and make sure it is executable. Then just run `chalk [path to file]`.
+
+Copy the file `chalk` to anywhere on your system path and make sure it is executable.
+
+From there you can run `chalk` or `chalk _filepath_`.
 
 
 ## Commands
diff --git a/chalk b/chalk
index a8bad4b..47e7f48 100755
--- a/chalk
+++ b/chalk
@@ -567,6 +567,10 @@ if __name__ == '__main__':
         print('chalk [\033[3mfile path\033[0m]')
         sys.exit(1)
     elif len(args) == 2:
+        if len(args[1]) and args[1][0] == "-":
+            print('Unknown flag {}'.format(args[1]))
+            print('chalk [\033[3mfile path\033[0m]')
+            sys.exit(1)
         filepath = args[1]
 
     # Set readline settings