Fixed broken link in ncWMS guide

Author: Guy G

docs/06-development.md

@@ -17,7 +17,7 @@ Note that you can use the variables `$CONFIGDIR` and `$HOME` which represent the
 
 ## Defining new style templates {#styles}
 
-To create a new style for plotting, you will need to create an SLD template. The specification for EDAL-specific SLD documents can be found in [the appendix](../appendices/sld_spec/introduction.md). Within this template, you may use the following placeholders:
+To create a new style for plotting, you will need to create an SLD template. The specification for EDAL-specific SLD documents can be found in [the appendix of the EDAL User Guide](https://reading-escience-centre.gitbooks.io/edal-user-guide/content/appendices/sld_spec/introduction.html). Within this template, you may use the following placeholders:
 
 * $layerName
 * $paletteName
@@ -40,4 +40,4 @@ Once you have created these templates, you may either place them in a subdirecto
 
 By default ncWMS supports reading of gridded NetCDF/GRIB/OPeNDAP data, and in-situ data from the EN3/4 UK Met Office dataset. To read additional types of data, a new data reader must be written. To do this, you must extend the class `uk.ac.rdg.resc.edal.dataset.DatasetFactory`. This has a single abstract method which returns a `uk.ac.rdg.resc.edal.dataset.Dataset` object given an ID and location.
 
-The full details of how to implement this are beyond the scope of this guide, but it is recommended to example the two existing data readers: `uk.ac.rdg.resc.edal.dataset.cdm.CdmGridDatasetFactory` and `uk.ac.rdg.resc.edal.dataset.cdm.En3DatasetFactory`, which can be found in the edal-cdm module. The [EDAL Javadocs](http://reading-escience-centre.github.io/edal-java/apidocs/index.html) are reasonably complete and will be of great use. Additionally you may wish to contact the developers of ncWMS through the website, who will be happy to provide guidance and assistance.
+The full details of how to implement this are beyond the scope of this guide, but it is recommended to example the two existing data readers: `uk.ac.rdg.resc.edal.dataset.cdm.CdmGridDatasetFactory` and `uk.ac.rdg.resc.edal.dataset.cdm.En3DatasetFactory`, which can be found in the edal-cdm module. The [EDAL Javadocs](http://reading-escience-centre.github.io/edal-java/apidocs/index.html) are reasonably complete and will be of great use. Additionally you may wish to contact the developers of ncWMS through the website, who will be happy to provide guidance and assistance.