Docker readme

Update docker readme to point to Gitlab registry.

added 32 commits

• ea2efcaa...61bdf12b - 29 commits from branch ghsc/nshmp:main
• ad7b18a7 - update docker docs
• b679411a - clean
• 13b62c67 - remove docker hub push

Compare with previous version

mentioned in commit 4eae1d22

merged