Add gracg (#1371)

Co-authored-by: rootmelo92118 <32770959+rootmelo92118@users.noreply.github.com>

data/category-social-media-cn

@@ -1,10 +1,11 @@
-# This list contains social media platforms inside China mainland.
-
-include:bcy
-include:douban
-include:sina
-include:xiaohongshu
-include:zhihu
-
-tieba.baidu.com
-tieba.com
+# This list contains social media platforms inside China mainland.
+
+include:bcy
+include:douban
+include:gracg
+include:sina
+include:xiaohongshu
+include:zhihu
+
+tieba.baidu.com
+tieba.com

data/gracg

@@ -0,0 +1,2 @@
+gracg.com
+procg.cn