adoption: add metamask in all, mobile, and web

Author: notmandatory

docs/.vuepress/public/img/case-studies-logos/metamask-130.png

@@ -347,6 +347,21 @@ Explore the ecosystem of projects that are built with the BDK family of librarie
   </div>
 </div>
 
+<!-- MetaMask -->
+<div class="project">
+  <div class="project-logo">
+  <a href="https://metamask.io" target="_blank">
+    <img src="/img/case-studies-logos/metamask-130.png" />
+  </a>
+  </div>
+  <div class="tagline">
+  <h3>
+    <a href="https://metamask.io" target="_blank">MetaMask</a>
+  </h3>
+  <p>Full self-custody and native Bitcoin support in MetaMask for Extension and Mobile.</p>
+  </div>
+</div>
+
 <!-- Mutiny Wallet -->
 <div class="project">
   <div class="project-logo">

docs/adoption/all.md

@@ -209,6 +209,21 @@ lastUpdated: false
   </div>
 </div>
 
+<!-- MetaMask -->
+<div class="project">
+  <div class="project-logo">
+  <a href="https://metamask.io" target="_blank">
+    <img src="/img/case-studies-logos/metamask-130.png" />
+  </a>
+  </div>
+  <div class="tagline">
+  <h3>
+    <a href="https://metamask.io" target="_blank">MetaMask</a>
+  </h3>
+  <p>Full self-custody and native Bitcoin support in MetaMask for Extension and Mobile.</p>
+  </div>
+</div>
+
 <!-- Mutiny Wallet -->
 <div class="project">
   <div class="project-logo">

docs/adoption/mobile.md

@@ -68,6 +68,21 @@ lastUpdated: false
   </div>
 </div>
 
+<!-- MetaMask -->
+<div class="project">
+  <div class="project-logo">
+  <a href="https://metamask.io" target="_blank">
+    <img src="/img/case-studies-logos/metamask-130.png" />
+  </a>
+  </div>
+  <div class="tagline">
+  <h3>
+    <a href="https://metamask.io" target="_blank">MetaMask</a>
+  </h3>
+  <p>Full self-custody and native Bitcoin support in MetaMask for Extension and Mobile.</p>
+  </div>
+</div>
+
 <!-- Proton Wallet -->
 <div class="project">
   <div class="project-logo">