updating content files

content/github/authenticating-to-github/connecting-to-github-with-ssh/about-ssh.md

@@ -25,7 +25,7 @@ If you haven't used your SSH key for a year, then {% data variables.product.prod
 
 If you're a member of an organization that provides SSH certificates, you can use your certificate to access that organization's repositories without adding the certificate to your {% data variables.product.product_name %} account. For more information, see "[About SSH certificate authorities](/articles/about-ssh-certificate-authorities)."
 
-### Further reading
+## Further reading
 
 - "[Checking for existing SSH keys](/articles/checking-for-existing-ssh-keys)"
 - "[Testing your SSH connection](/articles/testing-your-ssh-connection)"

content/github/authenticating-to-github/connecting-to-github-with-ssh/adding-a-new-ssh-key-to-your-github-account.md

@@ -123,7 +123,7 @@ After adding a new SSH key to your {% data variables.product.product_name %} acc
 {% endlinux %}
 
 {% if currentVersion == "free-pro-team@latest" %}
-### Further reading
+## Further reading
 
 - "[Authorizing an SSH key for use with SAML single sign-on](/articles/authorizing-an-ssh-key-for-use-with-saml-single-sign-on)"
 {% endif %}

content/github/authenticating-to-github/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent.md

@@ -13,7 +13,7 @@ versions:
 topics:
   - SSH
 ---
-### About SSH key generation
+## About SSH key generation
 
 If you don't already have an SSH key, you must generate a new SSH key to use for authentication. If you're unsure whether you already have an SSH key, you can check for existing keys. For more information, see "[Checking for existing SSH keys](/github/authenticating-to-github/checking-for-existing-ssh-keys)."
 
@@ -24,7 +24,7 @@ If you want to use a hardware security key to authenticate to {% data variables.
 {% endif %}
 If you don't want to reenter your passphrase every time you use your SSH key, you can add your key to the SSH agent, which manages your SSH keys and remembers your passphrase.
 
-### Generating a new SSH key
+## Generating a new SSH key
 
 {% data reusables.command_line.open_the_multi_os_terminal %}
 2. Paste the text below, substituting in your {% data variables.product.product_name %} email address.
@@ -75,7 +75,7 @@ If you don't want to reenter your passphrase every time you use your SSH key, yo
   > Enter same passphrase again: <em>[Type passphrase again]</em>
   ```
 
-### Adding your SSH key to the ssh-agent
+## Adding your SSH key to the ssh-agent
 
 Before adding a new SSH key to the ssh-agent to manage your keys, you should have checked for existing SSH keys and generated a new SSH key. <span class="platform-mac">When adding your SSH key to the agent, use the default macOS `ssh-add` command, and not an application installed by [macports](https://www.macports.org/), [homebrew](http://brew.sh/), or some other external source.</span>
 
@@ -178,7 +178,7 @@ Before adding a new SSH key to the ssh-agent to manage your keys, you should hav
 {% endlinux %}
 
 {% if currentVersion == "free-pro-team@latest" or currentVersion == "github-ae@next" or currentVersion ver_gt "enterprise-server@3.1"  %}
-### Generating a new SSH key for a hardware security key
+## Generating a new SSH key for a hardware security key
 
 If you are using macOS or Linux, you may need to update your SSH client or install a new SSH client prior to generating a new SSH key. For more information, see "[Error: Unknown key type](/github/authenticating-to-github/error-unknown-key-type)."
 
@@ -232,7 +232,7 @@ If you are using macOS or Linux, you may need to update your SSH client or insta
 
 {% endif %}
 
-### Further reading
+## Further reading
 
 - "[About SSH](/articles/about-ssh)"
 - "[Working with SSH key passphrases](/articles/working-with-ssh-key-passphrases)"

content/github/authenticating-to-github/connecting-to-github-with-ssh/working-with-ssh-key-passphrases.md

@@ -15,7 +15,7 @@ topics:
 ---
 With SSH keys, if someone gains access to your computer, they also gain access to every system that uses that key. To add an extra layer of security, you can add a passphrase to your SSH key. You can use `ssh-agent` to securely save your passphrase so you don't have to reenter it.
 
-### Adding or changing a passphrase
+## Adding or changing a passphrase
 
 You can change the passphrase for an existing private key without regenerating the keypair by typing the following command:
 
@@ -32,7 +32,7 @@ If your key already has a passphrase, you will be prompted to enter it before yo
 
 {% windows %}
 
-### Auto-launching `ssh-agent` on Git for Windows
+## Auto-launching `ssh-agent` on Git for Windows
 
 You can run `ssh-agent` automatically when you open bash or Git shell. Copy the following lines and paste them into your `~/.profile` or `~/.bashrc` file in Git shell:
 
@@ -87,7 +87,7 @@ The `ssh-agent` process will continue to run until you log out, shut down your c
 
 {% mac %}
 
-### Saving your passphrase in the keychain
+## Saving your passphrase in the keychain
 
 On Mac OS X Leopard through OS X El Capitan, these default private key files are handled automatically:
 
@@ -100,6 +100,6 @@ Otherwise, you can store your passphrase in the keychain when you add your key t
 
 {% endmac %}
 
-### Further reading
+## Further reading
 
 - "[About SSH](/articles/about-ssh)"