Fix link in talkmap.html

Author: HirokiHamaguchi

_pages/talkmap.html

@@ -5,5 +5,5 @@
 author_profile: true
 ---
 
-<p>This map is generated from a Jupyter Notebook file in <a href="https://github.com/academicpages/academicpages.github.io/blob/master/_talks/talkmap.ipynb">/_talks/talkmap.ipynb</a>, which mines the location fields in the .md files in _talks/.</p>
+<p>This map is generated from a Jupyter Notebook file in <a href="https://github.com/academicpages/academicpages.github.io/blob/master/talkmap.ipynb">talkmap.ipynb</a>, which mines the location fields in the .md files in _talks/.</p>
 <iframe src="/talkmap/map.html" height="700" width="850" style="border:none;"></iframe>