docs: add lock-in feature

Signed-off-by: Varun Patil <radialapps@gmail.com>

docs/overrides/home.html

@@ -407,5 +407,18 @@
             </p>
         </div>
     </div>
+
+    <div class="feature-item">
+        <div>
+            <h2>
+                No Lock-In
+            </h2>
+            <p>
+                Memories stores most of the metadata in the EXIF headers of your photos, which means
+                that you can easily migrate to other solutions without losing your data. It also utilizes
+                your existing filesystem structure for organization without converting it to any
+                specialized format.
+            </p>
+        </div>
 </div>
 {% endblock %}