[Applications] We need to add the correct link for How to NGO

[mirunaioana-msc]

Describe the bug Currently the button doesn't react because the link is broken

https://github.com/code4romania/onghub/assets/111346300/366f2f80-9346-4bee-8f11-aaab695eac33

Expected behavior The button should take me to https://howtongo.org/ro