Update projects.html

Author: Anzhu-W

templates/projects.html

@@ -6,7 +6,7 @@
 <section class="section container">
   <h1 class="title is-3" style="text-align: center; font-size: 2.5em;">TrustLab Projects</h1>
   <hr>
-  <img src="https://raw.githubusercontent.com/UQ-Trust-Lab/UQ-Trust-Lab.github.io/master/static/covers/placeholder.png" alt="">
+  <img src="https://raw.githubusercontent.com/UQ-Trust-Lab/UQ-Trust-Lab.github.io/master/static/covers/placeholder.png" alt=""  width="70%">
   <br><br>
   <!-- <p style="background-color: #E6E6FA; padding: 10px;">
     Hi ALL, <br>