fix a typo - wrong footer

fix a typo - zcmt instead of zct

fix a typo in zcf prerequisite.

Fix indents for prerelease input on workflow_dispatch.

This allows a pre-release to be generated when running a build using
workflow_dispatch. The name of the release will be based off the tag or
branch name, so running it off a branch with a name similar to v0.1.0 is
advised.

Signed-off-by: Stephano Cetola <scetola@linuxfoundation.org>

The name of the PDF was still set to the template's "example-spec.pdf".
This updates it to the name of the current output file.

Signed-off-by: Stephano Cetola <scetola@linuxfoundation.org>

Ignore PDF files, asciidoctor working files, and WaveDrom diagram files.

Signed-off-by: Stephano Cetola <scetola@linuxfoundation.org>

Signed-off-by: Stephano Cetola <scetola@linuxfoundation.org>

I've changed the layout of this repo to more closely mirror
https://github.com/riscv/docs-spec-template



Since the working adoc files are located in a subfolder, I've updated
the Makefile to point at that "root file". An "header.adoc" should be
added that more closely matches the template header.

Signed-off-by: Stephano Cetola <scetola@linuxfoundation.org>

Signed-off-by: Stephano Cetola <scetola@linuxfoundation.org>

Signed-off-by: Stephano Cetola <scetola@linuxfoundation.org>

Signed-off-by: Stephano Cetola <scetola@linuxfoundation.org>

Signed-off-by: Stephano Cetola <scetola@linuxfoundation.org>

fix typo

remove useless code block