Bump :lang markdown
Bump :lang markdown

ardumont/markdown-toc@7038f4f -> ardumont/markdown-toc@eda9650
jrblevin/markdown-mode@e9dff50 -> jrblevin/markdown-mode@c927a11

We're also transitioning from abbreviated SHA1 hashes to full ones. See
45cdfb125 for why.

hlissner/doom-emacs,hlissner/.emacs.d,UndeadKernel/emacs_doom,UndeadKernel/emacs_doom,UndeadKernel/emacs_doom,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/doom-emacs,UndeadKernel/emacs_doom,UndeadKernel/emacs_doom,hlissner/doom-emacs,hlissner/.emacs.d,UndeadKernel/emacs_doom,UndeadKernel/emacs_doom,hlissner/doom-emacs,hlissner/doom-emacs,hlissner/doom-emacs