Add install instructions, open DBs loop, -s arg

2 jobs from master in 38 seconds (queued for 4 seconds)
latest
Status Job ID Name Coverage
  Build
failed #16340
update-data

00:00:38

 
  Publish
skipped #16341
pages
 
Name Stage Failure
failed
update-data Build
2019-01-11 17:47:12 (2.15 MB/s) - 'duniter.db' saved [819200/819200]

$ mkdir -p /var/lib/duniter/.config/duniter/duniter_default/
$ mv duniter.db /var/lib/duniter/.config/duniter/duniter_default/
$ mkdir -p /var/www/wotmap/
$ cp -r ./ /var/www/wotmap/
$ mkdir /var/www/wotmap/img/photos/
mkdir: can't create directory '/var/www/wotmap/img/photos/': File exists
ERROR: Job failed: exit code 1