fix formatting concerns

DESCRIPTION

@@ -1,13 +1,13 @@
 Package: crosstalkr
-Title: Tools for analysis of graph-structured data with a focus on protein-protein interaction networks
+Title: Analysis of Graph-Structured Data with a Focus on Protein-Protein Interaction Networks
 Version: 0.8.0
 Authors@R: 
     person(given = "Davis",
            family = "Weaver",
            role = c("aut", "cre"),
            email = "davis.weaver@case.edu", 
            comment = c(orcid = "0000-0003-3086-497X"))
-Description: Provides a general framework for the identification of nodes that are functionally related to a set of seeds in graph structured data. In addition to being optimized for use with generic graphs, we also provides support to analyze protein-protein interactions networks from online repositories.
+Description: Provides a general framework for the identification of nodes that are functionally related to a set of seeds in graph structured data. In addition to being optimized for use with generic graphs, we also provides support to analyze protein-protein interactions networks from online repositories. For more details on core method, refer to Nibbe et al. (2010) <doi:10.1371/journal.pcbi.1000639>.
 License: GPL (>= 3)
 biocViews:
 Imports: