Welcome! I completly newbe with this script. Could i change this line ? to be like html lang="pl" and if i can where i can find it? It is because of SEO purposes. Here is the link labseo.pl/.
Its hard coded in /themes/Bootstrap/views/default.master.tpl. You can change it there but remember that this will always be overwritten when you update the Bootstrap theme.
I think you could post that as an issue on the Bootstrap repo, since it could (and should) be set dynamically.
thanks it does work.