Added 2 more references
Merge branch 'master' of https://github.com/hackers4peace/plp-docs

# By elf Pavlik (1) and ☮ elf Pavlik ☮ (1)
# Via elf Pavlik
* 'master' of https://github.com/hackers4peace/plp-docs:
  added Portability section
  added link to webfinger and adoption of spaceapi

Conflicts:
	README.md