add setup for two website links for projects on Research page

Author: RealZiangLiu

_data/research.yml

@@ -1,5 +1,8 @@
 - title: "Robot-assisted Feeding"
   link: "https://emprise.cs.cornell.edu/bitetransfer/"
+  link_text: "Bite Transfer"
+  link_2: "https://flair-robot.github.io/"
+  link_2_text: "Bite Acquisition"
   ytid: "CJ66x7JfqG0"
   description: "Eating is an activity of daily living (ADL) and losing the
   ability to self-feed can be devastating. Robots have the potential to help

_pages/research.html

@@ -16,7 +16,12 @@ <h2 class="project-title {% unless project.link %}no-link-space{% endunless %}">
       </h2>
 
       {% if project.link %}
-      <a href="{{ project.link }}" class="project-website-link" target="_blank" rel="noopener noreferrer">Project Website</a>
+      {% assign link_text = project.link_text | default: "Project Website" %}
+      <a href="{{ project.link }}" class="project-website-link" target="_blank" rel="noopener noreferrer">{{ link_text }}</a>
+      {% endif %}
+      {% if project.link_2 %}
+      {% assign link_2_text = project.link_2_text | default: "Project Website" %}
+      | <a href="{{ project.link_2 }}" class="project-website-link" target="_blank" rel="noopener noreferrer">{{ link_2_text }}</a>
       {% endif %}
 
       <div class="embed-responsive embed-responsive-16by9">