[elpa] externals/mct updated (f2426b4 -> 3b3d579)

[ELPA Syncer]

elpasync pushed a change to branch externals/mct.

      from  f2426b4   Make mct work on Emacs 27
       new  86ae024   Remove needless faces for line numbers
       new  3b3d579   Tweak the manual about references to Emacs 28


Summary of changes:
 README.org |  8 +++++---
 mct.el     | 24 ------------------------
 2 files changed, 5 insertions(+), 27 deletions(-)