fix: replace external links with internal (#2583)

Co-authored-by: Jonah Aragon <jonah@triplebit.net>
Signed-off-by: Daniel Gray <dngray@privacyguides.org>

docs/advanced/dns-overview.md

@@ -66,7 +66,7 @@ An observer could modify any of these packets.
 
 ## What is "encrypted DNS"?
 
-Encrypted DNS can refer to one of a number of protocols, the most common ones being:
+Encrypted DNS can refer to one of a number of protocols, the most common ones being [DNSCrypt](#dnscrypt), [DNS over TLS](#dns-over-tls-dot), and [DNS over HTTPS](#dns-over-https-doh).
 
 ### DNSCrypt
 
@@ -78,7 +78,7 @@ Encrypted DNS can refer to one of a number of protocols, the most common ones be
 
 ### DNS over HTTPS (DoH)
 
-[**DNS over HTTPS**](https://en.wikipedia.org/wiki/DNS_over_HTTPS) as defined in [RFC 8484](https://datatracker.ietf.org/doc/html/rfc8484) packages queries in the [HTTP/2](https://en.wikipedia.org/wiki/HTTP/2) protocol and provides security with HTTPS. Support was first added in web browsers such as Firefox 60 and Chrome 83.
+[**DNS over HTTPS**](https://en.wikipedia.org/wiki/DNS_over_HTTPS), as defined in [RFC 8484](https://datatracker.ietf.org/doc/html/rfc8484), packages queries in the [HTTP/2](https://en.wikipedia.org/wiki/HTTP/2) protocol and provides security with HTTPS. Support was first added in web browsers such as Firefox 60 and Chrome 83.
 
 Native implementation of DoH showed up in iOS 14, macOS 11, Microsoft Windows, and Android 13 (however, it won't be enabled [by default](https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/1833144)). General Linux desktop support is waiting on the systemd [implementation](https://github.com/systemd/systemd/issues/8639) so [installing third-party software is still required](../dns.md#encrypted-dns-proxies).
 
@@ -98,7 +98,7 @@ Apple does not provide a native interface for creating encrypted DNS profiles. [
 
 #### Linux
 
-`systemd-resolved`, which many Linux distributions use to do their DNS lookups, doesn't yet [support DoH](https://github.com/systemd/systemd/issues/8639). If you want to use DoH, you'll need to install a proxy like [dnscrypt-proxy](https://github.com/DNSCrypt/dnscrypt-proxy) and [configure it](https://wiki.archlinux.org/title/Dnscrypt-proxy) to take all the DNS queries from your system resolver and forward them over HTTPS.
+`systemd-resolved`, which many Linux distributions use to do their DNS lookups, doesn't yet [support DoH](https://github.com/systemd/systemd/issues/8639). If you want to use DoH, you'll need to install a proxy like [dnscrypt-proxy](../dns.md#dnscrypt-proxy) and [configure it](https://wiki.archlinux.org/title/Dnscrypt-proxy) to take all the DNS queries from your system resolver and forward them over HTTPS.
 
 ## What can an outside party see?
 
@@ -128,7 +128,7 @@ We can see the [connection establishment](https://en.wikipedia.org/wiki/Transmis
 
 ## Why **shouldn't** I use encrypted DNS?
 
-In locations where there is internet filtering (or censorship), visiting forbidden resources may have its own consequences which you should consider in your [threat model](../basics/threat-modeling.md). We do **not** suggest the use of encrypted DNS for this purpose. Use [Tor](https://torproject.org) or a [VPN](../vpn.md) instead. If you're using a VPN, you should use your VPN's DNS servers. When using a VPN, you are already trusting them with all your network activity.
+In locations where there is internet filtering (or censorship), visiting forbidden resources may have its own consequences which you should consider in your [threat model](../basics/threat-modeling.md). We do **not** suggest the use of encrypted DNS for this purpose. Use [Tor](../advanced/tor-overview.md) or a [VPN](../vpn.md) instead. If you're using a VPN, you should use your VPN's DNS servers. When using a VPN, you are already trusting them with all your network activity.
 
 When we do a DNS lookup, it's generally because we want to access a resource. Below, we will discuss some of the methods that may disclose your browsing activities even when using encrypted DNS:
 

docs/basics/common-misconceptions.md

@@ -88,7 +88,7 @@ One of the clearest threat models is one where people *know who you are* and one
 
 2. **Unknown identity** - An unknown identity could be a stable pseudonym that you regularly use. It is not anonymous because it doesn't change. If you're part of an online community, you may wish to retain a persona that others know. This pseudonym isn't anonymous because—if monitored for long enough—details about the owner can reveal further information, such as the way they write, their general knowledge about topics of interest, etc.
 
-    You may wish to use a VPN for this, to mask your IP address. Financial transactions are more difficult to mask: You could consider using anonymous cryptocurrencies, such as [Monero](https://getmonero.org). Employing altcoin shifting may also help to disguise where your currency originated. Typically, exchanges require KYC (know your customer) to be completed before they'll allow you to exchange fiat currency into any kind of cryptocurrency. Local meet-up options may also be a solution; however, those are often more expensive and sometimes also require KYC.
+    You may wish to use a VPN for this, to mask your IP address. Financial transactions are more difficult to mask: You could consider using anonymous cryptocurrencies, such as [Monero](../cryptocurrency.md#monero). Employing altcoin shifting may also help to disguise where your currency originated. Typically, exchanges require KYC (know your customer) to be completed before they'll allow you to exchange fiat currency into any kind of cryptocurrency. Local meet-up options may also be a solution; however, those are often more expensive and sometimes also require KYC.
 
 3. **Anonymous identity** - Even with experience, anonymous identities are difficult to maintain over long periods of time. They should be short-term and short-lived identities which are rotated regularly.
 

docs/basics/email-security.md

@@ -33,7 +33,7 @@ Email providers which allow you to use standard access protocols like IMAP and S
 
 ### How Do I Protect My Private Keys?
 
-A smartcard (such as a [YubiKey](https://support.yubico.com/hc/articles/360013790259-Using-Your-YubiKey-with-OpenPGP) or [Nitrokey](https://nitrokey.com)) works by receiving an encrypted email message from a device (phone, tablet, computer, etc.) running an email/webmail client. The message is then decrypted by the smartcard and the decrypted content is sent back to the device.
+A smartcard (such as a [YubiKey](https://support.yubico.com/hc/articles/360013790259-Using-Your-YubiKey-with-OpenPGP) or [Nitrokey](../multi-factor-authentication.md#nitrokey) works by receiving an encrypted email message from a device (phone, tablet, computer, etc.) running an email/webmail client. The message is then decrypted by the smartcard and the decrypted content is sent back to the device.
 
 It is advantageous for the decryption to occur on the smartcard to avoid possibly exposing your private key to a compromised device.
 

docs/tools.md

@@ -321,6 +321,8 @@ For encrypting your operating system drive, we typically recommend using whichev
 
 <div class="grid cards" markdown>
 
+- ![Redlib logo](assets/img/frontends/redlib.svg){ .twemoji loading=lazy } [Redlib (Reddit, Web)](frontends.md#redlib)
+- ![ProxiTok logo](assets/img/frontends/proxitok.svg){ .twemoji loading=lazy } [ProxiTok (TikTok, Web)](frontends.md#proxitok)
 - ![FreeTube logo](assets/img/frontends/freetube.svg){ .twemoji loading=lazy } [FreeTube (YouTube, Desktop)](frontends.md#freetube)
 - ![Yattee logo](assets/img/frontends/yattee.svg){ .twemoji loading=lazy } [Yattee (YouTube; iOS, tvOS, macOS)](frontends.md#yattee)
 - ![LibreTube logo](assets/img/frontends/libretube.svg#only-light){ .twemoji loading=lazy }![LibreTube logo](assets/img/frontends/libretube-dark.svg#only-dark){ .twemoji loading=lazy } [LibreTube (YouTube, Android)](frontends.md#libretube-android)