fix links

_posts/2017-11-11-release-0.16.0.md

@@ -68,17 +68,17 @@ for time_step in universe.trajectory:
 {% endhighlight %}
 
 @fiona-naugthon worked at offering several convenient way to iterate through your
-data. Read the [documentation](aux-doc) or [Fiona's blog posts](fiona-blog) to learn more about the feature.
+data. Read the [documentation][aux-doc] or [Fiona's blog posts][fiona-blog] to learn more about the feature.
 
 This feature is still in its beginning and will be expanded in future releases. You can
-follow the conversation on the [initial issue](issue785) or on the [pull request](pr868).
+follow the conversation on the [initial issue][issue785] or on the [pull request][pr868].
 So far, only the XVG format used by [gromacs] and [grace] are supported. Open an issue
 if you need support for other time series formats.
 
 ## Do a dimension reduction with PCA and Diffusion Maps
 
 @jdetle has implemented two new dimension reduction algorithms,
-[Principal Component Analysis](pca) and [Diffusion Maps](dmaps-paper). Both can
+[Principal Component Analysis][pca] and [Diffusion Maps][dmaps-paper]. Both can
 be found in the analysis submodule. As an example lets look at the first two PCA
 dimensions of ADK from our test files.
 
@@ -209,7 +209,7 @@ We also blogged since the start of the year about features of the upcoming relea
 
 A list of all changes can be found in the [CHANGELOG](https://github.com/MDAnalysis/mdanalysis/blob/develop/package/CHANGELOG).
 
-[dmaps-paper]: dx.doi.org/10.1073/pnas.0500334102
+[dmaps-paper]: http://www.pnas.org/content/102/21/7426
 [pca]: https://en.wikipedia.org/wiki/Principal_component_analysis
 [aux-doc]: http://www.mdanalysis.org/MDAnalysis/documentation_pages/auxiliary/init.html
 [fiona-blog]: http://fiona-naughton.github.io/blog/