Add emacs-pdb-mode & rna-pdb-tools

Author: mmagnus

README.md

@@ -3,6 +3,12 @@ emacs-pdb
 
 pdb-mode is an emacs-lisp minor mode for Emacs to perform a number of useful editing functions on Protein DataBank (PDB) formatted files. XEmacs and/or GNU Emacs are available for most computing platforms.
 
+## emacs-pdb-mode & rna-pdb-tools
+
+rna-pdb-tools can be used side-by-side https://github.com/mmagnus/emacs-pdb-mode to edit files structural files in the PDB format.
+
+http://rna-pdb-tools.readthedocs.io/en/latest/emacs.html
+
 ## How to customize the colors?
 You can play around with: