docs: fix spelling in workspaces.md file

PR-URL: npm#2973
Credit: @sethomas
Close: npm#2973
Reviewed-by: @wraithgar, @nosisky

docs/content/using-npm/workspaces.md

@@ -90,7 +90,7 @@ nested workspaces to be consumed elsewhere.
 
 ### Running commands in the context of workspaces
 
-You man use the `workspace` configuration option to run commands in the context
+You can use the `workspace` configuration option to run commands in the context
 of a configured workspace.
 
 Following is a quick example on how to use the `npm run` command in the context