feat: update /~ashpool

feat: rearrange /~ashpool, add NetHack info

fix: add trailing slash to author link in blog

feat: update ~ashpool.md

fix: author link in blog

feat: move to www.ash.pw

blog: publish hello-world-2

~ashpool: fix irc link

https://www.w3.org/Addressing/draft-mirashi-url-irc-01.txt

~ashpool: fix youtube link

~ashpool: update user names

rename LICENSE.TXT to LICENSE

license: adopt the MIT license

build: fix tar empty archive

build: chdir before making the artifact

build: fix artifact path

build: fix writing artifacts to the input dir

build: publish artifacts

build: prune non-existent files and dirs on upload

~ashpool: s/sr.ht/git.sr.ht/g

translate everything to en-GB; enhance brevity