Added note about $ in bash examples

docs-styleguide.md

@@ -5,6 +5,7 @@ This is the documentation styleguide for our natural language descriptions used
 ## Code references
 
 * Use `backticks` for every code example inside of a normal description. In the CLI, where you cannot use backticks, use 'single quotes' for commands.
+* For bash arguments, do not include a `$` before commands in man pages. A `$` may be included in READMEs.
 
 ### Acronyms