Updated Optional Hardening (markdown)

Optional-Hardening.md

@@ -61,7 +61,7 @@ user_pref("network.cookie.sameSite.schemeful", true);
 ### Secure DNS
 Setup and enforce DNS-over-HTTPS (DoH).
 
-#### Provider
+#### 1) Provider
 * Use the one below, or [choose](https://github.com/curl/curl/wiki/DNS-over-HTTPS) your preferred provider.
 * We recommend that you [create a profile](https://nextdns.io/?from=xujj63g5) with NextDNS and follow our [configuration guide](https://github.com/yokoffing/NextDNS-Config).
 ```
@@ -69,10 +69,10 @@ Setup and enforce DNS-over-HTTPS (DoH).
 user_pref("network.trr.uri", "https://dns.quad9.net/dns-query");
 ```
 
-#### Mode
-* Set to `2` if your work or university causes issues with alternative DNS.
+#### 2) 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.
 ```
 // PREF: enforce DNS-over-HTTPS (DoH)
 user_pref("network.trr.mode", 3);
@@ -82,7 +82,7 @@ user_pref("network.dns.skipTRR-when-parental-control-enabled", false);
 ***
 
 ### Sanitize on close
-#### Option 1: Clear all browsing data on shutdown except, except browser history
+#### Option 1: Clear all browsing data on shutdown, except browser history
 * `☰` *→ Settings → Privacy & Security → Cookies and Site Data → Delete cookies and site data when Firefox is closed*
 ```
 // PREF: clear all browsing data on shutdown (except browser history)