docs: blog (#4264)

Starting to move the blog from medium to mkdocs!

closes #3503

---------

Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>

scripts/pages/build.sh

@@ -1,9 +1,12 @@
 #!/bin/bash
 set -euo pipefail
 
+# unshallow (needed for the rss plugin)
+git fetch --prune --tags --unshallow
+
 # install
 pip install --upgrade pip
-pip install -U mkdocs-material mkdocs-redirects mkdocs-minify-plugin mkdocs-include-markdown-plugin lunr
+pip install -U mkdocs-material mkdocs-redirects mkdocs-minify-plugin mkdocs-include-markdown-plugin lunr mkdocs-rss-plugin
 
 # prepare
 version="$(cat ./www/docs/static/latest)"