Fix issues reported by user testing at FAC

[skibinska]

• [x] Boring tip I picked up in my past life: it's not great practice to write links like 'you can get in touch with me here' For various reasons (mainly SEO and accessibility) it's better to write 'If you are an employer looking to hire, get in touch with me.' - so that the link text describes the action/destination

• [x] typo: 'or would like to know more about one of my project,' should be 'projects'

• [x] make the nav whiter because once it goes over more text, you can't read it

• [x] it's not necessary to brand yourself as junior and front-end unless you're sure you want to limit yourself to those roles. You could just be a developer or 'full stack developer'

• [x] keep the number of fonts to 2 or 3

• [ ] add icons

[skibinska]

I will think about adding icons.