fix: Yubico U2F on Linux guide link (#3259)

Signed-off-by: Jonah Aragon <jonah@privacyguides.org>

docs/about/donate.md

@@ -28,11 +28,13 @@ MAGIC Grants is our fiscal host, and their custom, open-source donation platform
 
     <div class="mdx-specialthanks" markdown>
 
-    [![Power Up Privacy]](https://powerupprivacy.com){ rel=nofollow target=_blank title="Power Up Privacy" }
-    [![DeleteMe]](https://joindeleteme.com){ rel=nofollow target=_blank title="DeleteMe" }
+    [![Power Up Privacy]](https://powerupprivacy.com){ target=_blank title="Power Up Privacy" }
+    [![DeleteMe]](https://joindeleteme.com){ target=_blank title="DeleteMe" }
+    [![Cape]](https://www.cape.co){ target=_blank title="Cape" }
 
       [Power Up Privacy]: ../assets/img/donors/power-up-privacy.webp
       [DeleteMe]: ../assets/img/donors/deleteme.webp
+      [Cape]: ../assets/img/donors/cape.webp
 
     </div>
 
@@ -83,7 +85,7 @@ You can become an organizational member by reaching out to <info@magicgrants.org
 
 ### How are organizational members recognized?
 
-Organizational members that choose to be recognized publicly are included in our organizational members section (above), and occasionally at other opportunities where appropriate. Organizational member links include the `rel="nofollow"` attribute: We adopted this policy to screen out potential abuse of our program and site to raise the rank of third parties in search algorithms. Unfortunately, this is a growing problem for nonprofits. This was a complex decision since we know many of the sincere supporters behind these companies, but we decided that it was the best choice for us.
+Organizational members that choose to be recognized publicly are included in our organizational members section (above), and occasionally at other opportunities where appropriate.
 
 Organizational members have no ability to influence what content is recommended on the Privacy Guides website. Learn more about our [donation acceptance policy](donation-acceptance-policy.md).
 

docs/basics/multi-factor-authentication.md

@@ -140,7 +140,7 @@ If the hostname of your system changes (such as due to DHCP), you would be unabl
 
 </div>
 
-The `pam_u2f` module on Linux can provide two-factor authentication for logging in on most popular Linux distributions. If you have a hardware security key that supports U2F, you can set up MFA authentication for your login. Yubico has a guide [Ubuntu Linux Login Guide - U2F](https://support.yubico.com/hc/articles/360016649099-Ubuntu-Linux-Login-Guide-U2F) which should work on any distribution. The package manager commands—such as `apt-get`—and package names may however differ. This guide does **not** apply to Qubes OS.
+The `pam_u2f` module on Linux can provide two-factor authentication for logging in on most popular Linux distributions. If you have a hardware security key that supports U2F, you can set up MFA authentication for your login. Yubico has a guide [Ubuntu Linux Login Guide - U2F](https://support.yubico.com/s/article/Ubuntu-Linux-login-guide-U2F) which should work on any distribution. The package manager commands—such as `apt-get`—and package names may however differ. This guide does **not** apply to Qubes OS.
 
 ### Qubes OS
 

docs/cloud.md

@@ -89,8 +89,6 @@ Tresorit has received a number of independent security audits:
 
 [^1]: [ISO/IEC 27001](https://en.wikipedia.org/wiki/ISO/IEC_27001):2013 compliance relates to the company's [information security management system](https://en.wikipedia.org/wiki/Information_security_management) and covers the sales, development, maintenance and support of their cloud services.
 
-They have also received the Digital Trust Label, a certification from the [Swiss Digital Initiative](https://efd.admin.ch/en/swiss-digital-initiative-en) which requires passing [35 criteria](https://swiss-digital-initiative.org/criteria) related to security, privacy, and reliability.
-
 ## Peergos
 
 <div class="admonition recommendation" markdown>