Remove remaining HTML from notebook index.

Author: hodgestar

website/index.md.jinja

@@ -18,52 +18,52 @@ jupyter:
 ## Python Introduction
 
 {% for item in tutorials['python-introduction'] %}
-    - <a href="{{ item.url }}">{{ item.title }}</a>
+    - [{{ item.title }}]({{ item.url }})
 {% endfor %}
 
 
 ## Visualization
 
 {% for item in tutorials['visualization'] %}
-    - <a href="{{ item.url }}">{{ item.title }}</a>
+    - [{{ item.title }}]({{ item.url }})
 {% endfor %}
 
 
 ## Quantum information processing
 
-This section requires an additional package <a href="https://github.com/qutip/qutip-qip">qutip-qip</a>.
+This section requires an additional package [qutip-qip](https://github.com/qutip/qutip-qip).
 
 ### Quantum circuits and algorithms
 
 {% for item in tutorials['quantum-circuits'] %}
-    - <a href="{{ item.url }}">{{ item.title }}</a>
+    - [{{ item.title }}]({{ item.url }})
 {% endfor %}
 
 ### Pulse-level circuit simulation
 
 {% for item in tutorials['pulse-level-circuit-simulation'] %}
-    - <a href="{{ item.url }}">{{ item.title }}</a>
+    - [{{ item.title }}]({{ item.url }})
 {% endfor %}
 
 
 ## Time evolution
 
 {% for item in tutorials['time-evolution'] %}
-    - <a href="{{ item.url }}">{{ item.title }}</a>
+    - [{{ item.title }}]({{ item.url }})
 {% endfor %}
 
 
 ## Hierarchical Equations of Motion
 
 {% for item in tutorials['heom'] %}
-    - <a href="{{ item.url }}">{{ item.title }}</a>
+    - [{{ item.title }}]({{ item.url }})
 {% endfor %}
 
 
 ## Miscellaneous tutorials
 
 {% for item in tutorials['miscellaneous'] %}
-    - <a href="{{ item.url }}">{{ item.title }}</a>
+    - [{{ item.title }}]({{ item.url }})
 {% endfor %}
 
 
@@ -73,17 +73,16 @@ These lecture-style notebooks focus on particular quantum mechanics
 topics and analyze them numerically using QuTiP (some more detailed than others).
 
 {% for item in tutorials['lectures'] %}
-    - <a href="{{ item.url }}">{{ item.title }}</a>
+    - [{{ item.title }}]({{ item.url }})
 {% endfor %}
 
 
 ## Contributing
 
 If you would like to contribute a notebook or report a bug, you may open
 an issue or pull request in the
-<a href="https://github.com/qutip/qutip-tutorials">qutip-tutorials</a>
-GitHub repository.
+[qutip-tutorials](https://github.com/qutip/qutip-tutorials) GitHub repository.
 
 A few of the notebooks are still maintained in the repository
-<a href="https://github.com/qutip/qutip-notebooks">qutip-notebooks</a> and
+[qutip-notebooks](https://github.com/qutip/qutip-notebooks) and
 a complete archive of older versions of the tutorials is maintained there.