Add pretext version of httlacs

Author: bnmnetp

views/designer/index.html

@@ -91,6 +91,13 @@ <h3>Intro to Computer Science</h3>
 				</label>
 			</div>
 
+			<div class="radio">
+				<label>
+					<input type="radio" name="coursetype" value="httlacs"/>
+					How to Think Like a Computer Scientist: PreTeXt Interactive Edition <strong>New!</strong>
+				</label>
+			</div>
+
 			<div class="radio">
 				<label>
 					<input type="radio" name="coursetype" value="py4e-int" />