Trivial patches with minor corrections on README's

[Marcos Marado]

Hi there,

Please consider applying these three patches (in attachment) that
provide very minor corrections in the README's of three different
repositories (libgnunetchat, messenger-cli and messenger-gtk).

Best regards,
-- 
Marcos Marado

libgnunetchat-0001-README-standardize-the-library-name.patch
Description: Text Data

messenger-cli-0001-README-point-to-the-official-libgnunetchat-URL.patch
Description: Text Data

messenger-gtk-0001-README-point-to-the-official-libgnunetchat-URL.patch
Description: Text Data