Updated Optional Hardening (markdown)

Optional-Hardening.md

@@ -162,7 +162,7 @@ You can allow exceptions if you want to stay logged in to some sites:
 ### Secure DNS
 Setup and enforce DNS-over-HTTPS (DoH).
 
-#### 1) Provider
+#### Provider
 * Use the provider below for better [threat protection](https://quad9.net/service/threat-blocking/).
 * :star: Create a profile with [NextDNS](https://nextdns.io/?from=xujj63g5) and follow our [configuration guide](https://github.com/yokoffing/NextDNS-Config) for greater protection from ads, trackers, and security threats.
 ```javascript
@@ -170,7 +170,7 @@ Setup and enforce DNS-over-HTTPS (DoH).
 user_pref("network.trr.uri", "https://dns.quad9.net/dns-query");
 ```
 
-#### 2) Mode
+#### Mode
 * `3` has site-exceptions with a nice UI on the error page:
     * Go to `☰` *→ Settings → Privacy & Security → DNS over HTTPS → Manage Exceptions*
 * :warning: Set to `2` if your workplace or university causes issues with alternative DNS.