Adding SQLBolt to the activities page

Author: KeiranWDigital

pages-activities/activities-learning.html

@@ -163,7 +163,21 @@ <h4>
             </div>
         </div>
     </div>
-
+    <div class="col-lg-4 col-md-6 d-flex align-items-stretch">
+        <div class="row">
+            <div class="card">
+                <h4>
+                    <span class="fas fa-bolt"></span>
+                    <a href="https://sqlbolt.com/" target="_blank">SQL Bolt</a>
+                    <span class="badge badge-success">Easy</span>
+                </h4>
+                <p>
+                    SQLBolt is a series of interactive lessons and exercises designed to help you quickly learn SQL
+                    right in your browser. It's based on the open source <a href="https://www.mysql.com/">MySQL</a> syntax.
+                </p>
+            </div>
+        </div>
+    </div>
     <div class="col-lg-4 col-md-6 d-flex align-items-stretch">
         <div class="row">
             <div class="card">