created a section for each environment listed, so it's easier to parse visually

README.md

@@ -11,8 +11,15 @@ tilde.town.
 # Table of contents
 
 <!-- markdown-toc start - Don't edit this section. Run M-x markdown-toc-refresh-toc -->
-
 - [Requirements](#requirements)
+- [Conventions used in this handbook](#conventions-used-in-this-handbook)
+- [Getting started](#getting-started)
+    - [For macOS users](#for-macos-users)
+    - [For Windows Subsystem for Linux users](#for-windows-subsystem-for-linux-users)
+    - [For Ubuntu users](#for-ubuntu-users)
+    - [For cmdr users](#for-cmdr-users)
+    - [For PuTTY users](#for-putty-users)
+    - [Testing out your command line interface](#testing-out-your-command-line-interface)
 
 <!-- markdown-toc end -->
 
@@ -52,31 +59,40 @@ looks like a blank, black screen, but it may be different for you. I
 will list off how you can find the command line interface for a few
 operating systems below:
 
-**For macOS users**: You can use one of the following procedures below
-for finding the built-in app called "Terminal":
+## For macOS users
+
+You can use one of the following procedures below for finding the
+built-in app called "Terminal":
   * Open the Spotlight app and search for the word "terminal"
   * Open your `Applications > Utilities` directory and double-click the Terminal app
 
-**For Windows Subsystem for Linux users**:
+## For Windows Subsystem for Linux users
+
 * Open your start menu and search for the word "Ubuntu"
 
 **Note**: The steps above assumed you chose Ubuntu as the Linux
 distribution for Windows Subsystem for Linux during your installation.
 
-**For Ubuntu users**: You can use one of the following procedures
-below for finding the built-in terminal application:
+## For Ubuntu users
+
+You can use one of the following procedures below for finding the
+built-in terminal application:
   * Type `Ctrl+Shift+t`
   * Click the Ubuntu icon and search for the word "terminal"
 
-**For cmdr users**:
+## For cmdr users
+
 * Open the cmdr application
 
-**For PuTTY users**:
+## For PuTTY users
+
 * PuTTY isn't a command line interface itself, but it acts as a tool
   to connect to other computers, so you can use their command line
   interface. This will be covered in the
   [Connecting to tilde.town](#connecting-to-tildetown) section.
 
+## Testing out your command line interface
+
 After you think you have found your environment's command line
 interface, you'll be using it in the rest of this handbook.
 
@@ -95,7 +111,8 @@ That should "return" a several items. For me, it returned:
 Desktop Downloads Documents Images Videos Music
 ```
 
-If `ls` returned what seems to be the files or directories on your computer, then you have everything you need!
+If `ls` returned what seems to be the files or directories on your
+computer, then you have everything you need!
 
 **Note**: "return" is technical jargon used to describe how something
 on a computer sends data somewhere. In this case, the text