diff --git a/README.md b/README.md
index 56fa64d..ef9fdae 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ This handbook is for people with less of a technical background who
 want to learn more about the interactions you can have while using
 tilde.town.
 
-# Table of contents
+## Table of contents
 
 - [Requirements](#requirements)
 - [Conventions used in this handbook](#conventions-used-in-this-handbook)
@@ -26,7 +26,7 @@ tilde.town.
     - [Understanding package managers](#understanding-package-managers)
 - [Basic UNIX commands](#basic-unix-commands)
 
-# Requirements
+## Requirements
 
 * Basic understanding of files and directories
 * A UNIX-like environment, such as:
@@ -43,13 +43,13 @@ tilde.town.
   * [PuTTY](https://www.chiark.greenend.org.uk/~sgtatham/putty/)
   * [and many more](https://distrowatch.com/)
 
-# Conventions used in this handbook
+## Conventions used in this handbook
 
 * **Notes** signify additional information.
 * **Tips** signify alternative methods to procedures. * **Examples** provide a visual reference of how a procedure would be carried out in the real world.
 * **Monospaced font** signifies directory names, file names, file contents, and commands.
 
-# Getting started
+## Getting started
 
 One of tilde.town's goals is to transform the command line from a
 scary-looking technical tool into a tool for creating beautiful
@@ -70,39 +70,39 @@ test the environment to make sure everything is working.
 - [For PuTTY users](#for-putty-users)
 - [Testing out your command line interface](#testing-out-your-command-line-interface)
 
-## For macOS users
+### 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
+### 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
+### 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.
@@ -129,7 +129,7 @@ computer, then you have everything you need!
 somewhere. In this case, the text representing your files and directories is the data, and that text
 is being sent to your screen.
 
-# Understanding UNIX-related concepts
+## Understanding UNIX-related concepts
 
 This section will teach you the concepts required to follow further
 sections in this handbook.
@@ -141,12 +141,12 @@ This section consists of the following subsections:
 - [Understanding commands](#understanding-commands)
 - [Understanding package managers](#understanding-package-managers)
 
-## Understanding your home directory
+### Understanding your home directory
 
-## Understanding directory and file permissions
+### Understanding directory and file permissions
 
-## Understanding commands
+### Understanding commands
 
-## Understanding package managers
+### Understanding package managers
 
-# Basic UNIX commands
+## Basic UNIX commands