Update README.md

README.md

@@ -19,10 +19,12 @@ Work on GFO has started in 1999 in the context of the GOL project (General Ontol
 The "native" formalization language for GFO is [first-order logic (FOL)](https://en.wikipedia.org/wiki/First-order_logic). Partial axiomatizations of GFO in FOL exist in report working drafts, but are not yet available to the public.
 
 ### Release Strategy
-*gfo-basic.owl* forms the core module of GFO. We are going to continually provide further modules/extensions, dedicated to several of our research domains, like time, space, processes, etc. There may be parallel extensions for these domains, and not all extensions will be consistent with each other. All module files are provided with their own namespaces (e.g., http://purl.org/ontology/gfo-time) and can be used separately. A selection of those modules will be unified in the next version of *gfo.owl* (under the namespace http://purl.org/ontology/gfo). *gfo-light.owl* is a simplified view of the entire GFO. It does not build on single modules but combines all basic concepts and simplified axioms of the GFO. *gfo-light.owl* is primarily intended to found domain or application ontologies.
+[gfo-basic.owl](gfo-basic.owl) forms the core module of GFO. We are going to continually provide further modules/extensions, dedicated to several of our research domains, like time, space, processes, etc. There may be parallel extensions for these domains, and not all extensions will be consistent with each other. All module files are provided with their own namespaces (e.g., https://w3id.org/gfo-time/) and can be used separately. A selection of those modules will be unified in the next version of [gfo.owl](gfo.owl) (under the namespace https://w3id.org/gfo/).
+
+[gfo-light.owl](gfo-light.owl) is a simplified view of the entire GFO. It does not build on single modules but combines all basic concepts and simplified axioms of the GFO. [gfo-light.owl](gfo-light.owl) is primarily intended to found domain or application ontologies.
 
 ### Release History
-Work on the OWL version of GFO started in early 2006 in the context of the [GFO-Bio](http://www.onto-med.de/ontologies/gfo-bio/index.jsp) project, resulting in the 1.0 release of *gfo.owl*. The renewed release strategy in 2008 lead to *gfo-basic.owl*, a corrected and slightly simplified version.
+Work on the OWL version of GFO started in early 2006 in the context of the [GFO-Bio](http://www.onto-med.de/ontologies/gfo-bio/index.jsp) project, resulting in the 1.0 release of [gfo.owl](gfo.owl).
 
 ## Documentation and Publications
 ### Onto-Med Report Series on GFO
@@ -50,4 +52,4 @@ The following is the general form of citation for Part I, where the correspondin
 > **Heller B, Herre H**. Formal Ontology and Principles of GOL. Onto-Med Report Nr. 1. Research Group Ontologies in Medicine (Onto-Med), University of Leipzig.
 
 ### Further Documentation
-Apart from the GFO reports, we have not yet completed the work on more introductory or tutorial material. This is going to happen in the nearer future. Currently, the easiest way to access the basic categories of GFO is to view the file *gfo-basic.owl* in an ontology editor (e.g. [OwlSight](https://www.w3.org/2001/sw/wiki/OWLSight) or [Protégé](https://protege.stanford.edu)). In particular, that file provides short descriptions for each category.
+Apart from the GFO reports, we have not yet completed the work on more introductory or tutorial material. This is going to happen in the nearer future. Currently, the easiest way to access the basic categories of GFO is to view the file [gfo-light.owl] in an ontology editor (e.g. [Protégé](https://protege.stanford.edu)). In particular, that file provides short descriptions for each category.