README polishing

README.md

@@ -9,7 +9,7 @@
 
 An R package for the (3D) visualisation and analysis of biological image data, especially tracings of
 single neurons. **nat** is the core package of a wider suite of neuroanatomy 
-tools introduced at http://jefferislab.github.io. **nat** ([and its ancestors](https://github.com/jefferis/AnalysisSuite))
+tools introduced at http://jefferislab.github.io. **nat** (and its [ancestors](https://github.com/jefferis/AnalysisSuite))
 have been used in a number of papers from our group including:
 
 [![Cell 2007 Cover](http://www.cell.com/cms/attachment/602399/4753939/cov200h.gif "Olfactory Projection Neuron Mapping")](http://dx.doi.org/10.1016/j.cell.2007.01.040)
@@ -94,4 +94,4 @@ If you think that you have found a bug:
   - [file a  bug report](https://github.com/jefferis/nat/issues/new) if this seems to be a new problem
   - comment on an existing bug report 
 
-Thanks for your interest in *nat*!
+Thanks for your interest in **nat**!