added docs

diff --git a/jmax-bibtex.el b/jmax-bibtex.el
index cf016cb0c747a7eca8cad49b1cc747f377533b67..9c84e23ea85019306a9f0e9c61f56641780c86af 100644 (file)
--- a/jmax-bibtex.el
+++ b/jmax-bibtex.el
@@ -431,9 +431,11 @@ The function must take one argument, the doi.")
 
 (defun jmax-bibtex ()
   "Menu command to run in a bibtex entry.
-Functions from `jmax-bibtex-menu-funcs'."
+Functions from `jmax-bibtex-menu-funcs'. They all rely on the
+entry having a doi."
   
   (interactive)
+  ;; construct menu string as a message
   (message
    (concat
     (mapconcat