* getting-started.md: Add title, link to /blog.
* guix-hpc.scm (image-url, css-url): Add leading /.
(post-url): Add "/blog".
(base-layout): Add "Blog", change feed URL.
(about-page): Remove.
(static-pages)[markdown-page]: New procedure.
Use it.  Add "getting-started".
* nginx-locations.conf: Add redirects.

* nginx-locations.conf: New file.
* nginx.conf: Include it.  Remove commented out sections.

* getting-started.md: Add scikit-learn in the 'guix environment'
example.

* nginx.conf: New file.

* getting-started.md: New file.

* haunt.scm (%web-site-title): New variable.
(%hpc-haunt-theme): Pass it to 'base-layout'.
<site>: Ditto.

* about.md (Cluster Deployments): Add ACE.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>

Reported by Apteryx on #guix.

* posts/guix-hpc-debuts.md: Fix typo.

* about.md (Code): Add link to guix-bimsb package repository.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* about.md (Cluster Deployments): New section.

* about.md (Code): New section.

* about.md (Talks & Papers): Add the GWL talk.

* about.md (Talks & Papers): New section.

* posts/guix-hpc-debuts.md: Change publication date.

* posts/guix-hpc-debuts.md: Add reference.

* about.md: Substitute 'UMC Utrecht' with 'Utrecht Bioinformatics Center'
* guix-hpc.scm: Likewise.
* posts/guix-hpc-debuts.md: Likewise.
* static/images/ubc.png: New file.
* static/images/umcutrecht.png: Remove file.

* guix-hpc.scm (base-layout): Remove "Where" and "Who" in the menu.

* posts/guix-hpc-debuts.md: Mention the SRA of ETC4HPC.

* posts/guix-hpc-debuts.md: Link to the Nature article about
containers.

* static/css/main.css (#header .logo): Remove 'float', add 'display'.
(#header .baseline): Use 'display: block'.

* guix-hpc.scm (base-layout): Add a baseline below the logo.
* static/css/main.css (#header): Increase height.
(#header .baseline): New.

* static/css/main.css (a): Add 'border-color'.

* guix-hpc.scm (base-layout): Replace Guile plug in footer with a link
to the source.

* haunt.scm (base-layout): Move to...
* guix-hpc.scm (base-layout): ... here.  Add #:title parameter.
(read-markdown-page): New procedure.
(about-page): Use it.
(static-pages): Use 'sxml->html' instead of 'sxml->xml'.
* about.md: Fix URL to post.

* haunt.scm (base-layout): Link to about.html.

* haunt.scm (base-url, image-url, css-url, post-url): Move to...
* guix-hpc.scm: ... here.

* about.md: Mention joining and guix-hpc@gnu.org.
* posts/guix-hpc-debuts.md: Likewise, and mention training sessions.

* posts/guix-hpc-debuts.md: Tweak.

* image-sources/guixhpc-logo.svg: New file.

* posts/guix-hpc-debuts.md: Fix typo.

* posts/guix-hpc-debuts.md (author): Add Pjotr!

* static/css/main.css (.post h1, .post-about): Tweak.

* static/css/main.css (a, a:visited, a.title): Adjust.

This allows 'WEB_SITE_LOCAL=t' builds to work as expected.

* haunt.scm (base-url): Make 'location' a rest argument.
(image-url, css-url): Define in terms of 'base-url'.
(post-url): Remove 'string-append'.

* posts/guix-hpc-debuts.md: Fix typos.