[cli] Spell-check and logo update

The correct and consistent spelling is hyphenated. The current logo also
struggles to be seen on a dark background. This fixes both issues.

Author: rcalixte

topics/cli/cli.png

@@ -1,7 +1,7 @@
 ---
 aliases: commandline-interface, command-line-interface, commandline, command-line
 created_by: Glenda Schroeder
-display_name: Command line interface
+display_name: Command-line interface
 released: '1965'
 short_description: A CLI, or command-line interface, is a console that helps users
   issue commands to a program.