Add custom css to chirpy theme

Custom css in chirpy theme?

1. create folder ../assets/css
2. add jekyll-theme-chirpy.scss from source
3. append the file like this e.g.

/* append your custom style below */

/* fix margin-left of highlight css for code block until I know better */

.highlight pre {
    margin-bottom: 0;
    margin-top: 1rem;
    margin-left: 1rem;
    font-size: .85rem;
    line-height: 1.4rem;
    word-wrap: normal;
}