fix(docs-infra): fix vertical alignment of contributor info items (#40802)
fix(docs-infra): fix vertical alignment of contributor info items (#40802)

This commit fixes the vertical alignment of info items (i.e. links to
bio, Twitter, website) in the contributor list.

Before: ![contributor alignment before][1]
After: ![contributor alignment after][2]

[1]: https://user-images.githubusercontent.com/8604205/106926453-ca407f80-6719-11eb-9580-8614cc4f4907.png
[2]: https://user-images.githubusercontent.com/8604205/106926469-cd3b7000-6719-11eb-8ba8-c8ae01996c02.png

PR Close #40802

JiaLiPassion/angular,mgechev/angular,angular-indonesia/angular,manekinekko/angular,gnomeontherun/angular,mgechev/angular,ocombe/angular,JiaLiPassion/angular,angular-indonesia/angular,shairez/angular,brandonroberts/angular,gkalpak/angular,ocombe/angular,manekinekko/angular,alxhub/angular,gnomeontherun/angular,alxhub/angular,angular/angular,ocombe/angular,JiaLiPassion/angular,brandonroberts/angular,angular-indonesia/angular,angular/angular,angular/angular,shairez/angular,alxhub/angular,ocombe/angular,brandonroberts/angular,manekinekko/angular,gnomeontherun/angular,shairez/angular,alxhub/angular,angular-indonesia/angular,manekinekko/angular,alxhub/angular,shairez/angular,shairez/angular,brandonroberts/angular,angular/angular,mgechev/angular,gkalpak/angular,manekinekko/angular,JiaLiPassion/angular,mgechev/angular,gnomeontherun/angular,gkalpak/angular,manekinekko/angular,gkalpak/angular,ocombe/angular,ocombe/angular,mgechev/angular,brandonroberts/angular,brandonroberts/angular