prune subsections from TOC

README.markdown

@@ -19,23 +19,13 @@ features.
 - [Installation](#installation)
 - [Usage](#usage)
   - [File Shortcuts](#file-shortcuts)
-    - [Git Status Shortcuts:](#git-status-shortcuts)
-    - ['ls' shortcuts:](#ls-shortcuts)
-    - [Other shortcuts](#other-shortcuts)
   - [Keyboard bindings](#keyboard-bindings)
   - [Repository Index](#repository-index)
   - [Linking External Project Design Directories](#linking-external-project-design-directories)
-    - [1) Create and configure a root design directory](#1-create-and-configure-a-root-design-directory)
-    - [2) Initialize design directories for your projects](#2-initialize-design-directories-for-your-projects)
-    - [3) Link existing design directories into your projects](#3-link-existing-design-directories-into-your-projects)
 - [Configuration](#configuration)
-  - [1) Configure and use the provided SCM Breeze aliases](#1-configure-and-use-the-provided-scm-breeze-aliases)
-  - [2) Use your own aliases](#2-use-your-own-aliases)
 - [Updating](#updating)
 - [Uninstalling](#uninstalling)
 - [Notes about Tab Completion for Aliases](#notes-about-tab-completion-for-aliases)
-    - [Bash](#bash)
-    - [Zsh](#zsh)
 - [Contributing](#contributing)