x/talks/content/2012: {waza,concurrency}.slide are broken because of a # comment on top

[nasuku]

The links to the slides from the blog page https://blog.golang.org/waza-talk are broken.

Would be great if the links are fixed. If not, atleast remove the broken link.

[cagedmantis]

/cc @golang/release

[dmitshur]

Thanks for reporting. Are you referring to the link to https://talks.golang.org/2012/waza.slide?

It looks like the link is okay, but the slides themselves are broken.

I think it's related to #33955; those slides have a comment on top that begins with "#" and it makes present wrongly select the new Markdown format. CC @rsc.

[dmitshur]

As reported in #42639, this is also affecting https://talks.golang.org/2012/concurrency.slide, which is linked from https://tour.golang.org/concurrency/11.

[dmitshur]

This was resolved in CL 284392, as part of fixing a similar issue #43455.