Copy edit index.md

Amanda Butler · web-flow · commit 9f5deaa2e1f4 · 2019-01-30T15:25:10.000-06:00
Edit text, mostly for branding and consistent spelling across docs, for credibility and consistency.
diff --git a/docs/index.md b/docs/index.md
@@ -1,3 +1,3 @@
-# mbed Command Line Interface
+# Arm Mbed command-line interface
 
-*mbed CLI* is the name of the Arm Mbed command line tool, packaged as mbed-cli, which enables the full Mbed workflow: repositories version control, maintaining dependencies, publishing code, updating from remotely hosted repositories (GitHub, GitLab and mbed.org), and invoking Arm Mbed's own build system and export functions, among other operations.
+*Mbed CLI* is the name of the Arm Mbed command-line tool, packaged as `mbed-cli`, which enables the full Mbed workflow: repositories version control, maintaining dependencies, publishing code, updating from remotely hosted repositories (GitHub, GitLab and mbed.org) and invoking Arm Mbed's own build system and export functions, among other operations.
