fix links

content/authors.rst

@@ -12,7 +12,7 @@ The principal developers of kwant are:
   Grenoble)
 
 Kwant authors should be reached via email authors@kwant-project.org. Please use
-the `mailing list </community.html>`_ for any Kwant-related question that can
+the `mailing list </community>`_ for any Kwant-related question that can
 be discussed publicly.
 
 Other people that have contributed to Kwant include

content/citing.rst

 Citing Kwant
 ============
 
-We provide Kwant as free software under a `BSD license </license.html>`_ as a
+We provide Kwant as free software under a `BSD license </license>`_ as a
 service to the physics community.  If you have used Kwant for work that has
 lead to a scientific publication, please mention the fact that you used it
 explicitly in the text body.  For example, you may add

content/community.rst

@@ -146,7 +146,7 @@ fixing/improving the documentation.
 If you have some code that works well with Kwant, or extends it in some useful
 way, please consider sharing it.  Any external contribution will be clearly
 marked as such, and relevant papers will be added to the list of `suggested
-acknowledgements </citing.html>`_.  The complete development history is also
+acknowledgements </citing>`_.  The complete development history is also
 made available through a `web interface <http://git.kwant-project.org/kwant>`_.
 If you plan to contribute, it is best to coordinate with us in advance either
 through the general mailing list kwant-discuss@kwant-project.org, or directly at