[DOCS] LICENSE: add Forgejo Authors

(cherry picked from commit 7c98a4c54e)
(cherry picked from commit 1ec4a8e6cf)
(cherry picked from commit 79de60a5d8)
(cherry picked from commit e7fbfb34a9)
(cherry picked from commit 7f625d25a3)
(cherry picked from commit 9341e18427)
(cherry picked from commit a03e449c01)
(cherry picked from commit b4c7140bec)
(cherry picked from commit 685c9d4a87)
(cherry picked from commit 48b3594a7d)
(cherry picked from commit 8eefd84d38)
(cherry picked from commit d42f1028eb)
(cherry picked from commit 3bb7f7ed51)
(cherry picked from commit ac109696e7)
(cherry picked from commit d39713efb4)
(cherry picked from commit f0bc5decfb)
(cherry picked from commit 17088c4188)
(cherry picked from commit 6a97494acd)
(cherry picked from commit 261705d6a1)
(cherry picked from commit 601cb8cf6f)
(cherry picked from commit 9812c73692)
(cherry picked from commit 430b4c19a4)
(cherry picked from commit 5b5162aae7)
(cherry picked from commit 26a89ded6a)
(cherry picked from commit 1cfe396d4b)
(cherry picked from commit b9fb3d9f13)
(cherry picked from commit 476efc0063)
(cherry picked from commit 8d71e6b2f8)
(cherry picked from commit e9f1631c3d)
(cherry picked from commit c4d8eef7c5)
(cherry picked from commit 7cfd4147be)
(cherry picked from commit d8cbe27d30)
(cherry picked from commit d7b3f85db2)
(cherry picked from commit b92e54bb36)
(cherry picked from commit c12596f414)
(cherry picked from commit ea9ec0b98a)
(cherry picked from commit 6e4662fd58)
(cherry picked from commit e8d3f1cb57)
(cherry picked from commit 20a468fc68)
(cherry picked from commit 7de10195b8)
(cherry picked from commit 7fada754e8)
(cherry picked from commit 03ea6b95d8)
(cherry picked from commit b6e1b3c872)

LICENSE

@@ -1,3 +1,4 @@
+Copyright (c) 2022 The Forgejo Authors
 Copyright (c) 2016 The Gitea Authors
 Copyright (c) 2015 The Gogs Authors