Update README.rst

README.rst

@@ -3,14 +3,22 @@ PathMe |build| |coverage| |docs| |zenodo|
 PathMe is a Python package aimed to convert KEGG [2]_ [3]_ [4]_, Reactome [5]_ [6]_, and WikiPathways [7]_ [8]_ [9]_ to
 Biological Expression Language (BEL).
 
-It is the continuation of the ComPath web application aimed at exploring, analyzing,
+This project is the continuation of the ComPath web application aimed at exploring, analyzing,
 and curating pathway knowledge in a gene-centric view. This different approach involves converting
 all the pathways in these resources into BEL as a pivotal integration schema to harmonize entities and relationships in
 order across these multiple resources; thus, enabling a more comprehensive evaluation of pathway cross-talks, consensus,
 and boundaries. Additionally, PathMe is complemented with the
 `PathMe-Viewer <https://github.com/ComPath/PathMe-Viewer>`_, a web application that enables querying, browsing, and
 navigating  pathway knowledge assisted by a user-friendly visualization.
 
+Database Versions
+-----------------
+PathMe currently uses the following versions of the databases:
+
+- **KEGG**: Up-to-date (KEGG does not have tag its releases)
+- **Reactome**: 67 Release
+- **WikiPathways**: September 2019 Release
+
 Citation
 --------
 If you use PathMe in your work, please consider citing: