another typo

Author: cadenmyers13

docs/source/getting-started.rst

@@ -47,7 +47,7 @@ To install using ``pip`` into your ``diffpy.cmi_env`` environment, type
         pip install diffpy.cmi
 
 Pack and Profile Installation
------------------
+-----------------------------
 
 Use the `cmi` command-line interface to install and manage modular optional dependencies, known as `packs`,
 and to configure or execute user-defined workflows that combine multiple packs with optional post-installation steps,