edit ci and update readme

.gitlab-ci.yml

README.md

static/backgrounds/License free.txt

static/backgrounds/background.jpg

...ds/cyber-security-padlock-concept-illustration/3797378.ai

...s/cyber-security-padlock-concept-illustration/3797379.eps

...security-padlock-concept-illustration/License premium.txt

...nds/digital-particle-mesh-technology-background/23621.eps

...ital-particle-mesh-technology-background/License free.txt

...l-particle-mesh-technology-background/License premium.txt

...igital-particle-mesh-technology-background/background.jpg