commit d8994ffe64f983eb4679e3b2ba0d3e09975152ca
author Russ Cox <rsc@google.com> Mon May 17 11:35:28 2021 -0400
committer Russ Cox <rsc@google.com> Mon May 24 23:12:15 2021 -0400
tree c7e22572dd6f9baa76f52d15be10a7369c64a90e
parent 2bc36cb117c563b99e2cb7a3454987acfe65b532

[x/go.dev] all: remove use of index.md for single page

Hugo uses both a file-per-page and directory-per-page model.
For example go.dev/about/ is served from _content/about.md
but go.dev/solutions/dropbox/ is served from _content/solutions/dropbox/index.md.
This is needlessly complex.

Hugo then has the concept of a section of pages, which would
naturally correspond with directories, but since directories
are already used for single pages, Hugo defines that a section
is a directory with an _index.md instead of an index.md.

This CL removes all use of index.md for single pages.
Then the directory structure and the section structure can
be defined to match exactly, and then the _index.md can
become plain index.md.

A few images moved their URLs, which should not matter since
no sites should be linking to our images. And many images
were outright deleted, since they were not linked at all
(copies in the images directory are linked instead).

Now there is no confusion about index.md versus _index.md.

Even better, parent and section are easily defined based on the name
of the page's file, instead of being dependent on the content of the
surrounding file tree.

Change-Id: I081d34a26150a550d6fb40d534f0c6befa4901c2
X-GoDev-Commit: 617b6df873f1d3500a3e484233cd51e7fa79c578