Set up libc team to give members bors perms

JohnTitor · JohnTitor · commit bcd4606b0dbb · 2020-10-13T01:09:14.000+09:00
diff --git a/teams/libc.toml b/teams/libc.toml
@@ -0,0 +1,14 @@
+name = "libc"
+
+[people]
+leads = []
+members = [
+    "JohnTitor",
+    "joshtriplett",
+]
+
+[permissions]
+bors.libc.review = true
+
+[[github]]
+orgs = ["rust-lang"]
