Update README.rst

Fix some wording in the introductory paragraph.

Author: mvanderkamp

README.rst

@@ -3,8 +3,9 @@ vim-pudb-and-jam
 
 A simple plugin allowing you to manage pudb breakpoints directly from vim.
 Forked from `vim-pudb`_ and given some jammy features such as setting and
-editing equations, improved persistence of breakpoints, and the ability to list
-active breakpoints either as a printed message or in a quickfix list.
+editing breakpoint conditions, customization options, improved persistence
+of breakpoints, and the ability to list active breakpoints either as a
+printed message or in a quickfix list.
 
 .. _vim-pudb: https://github.com/KangOl/vim-pudb