Add haitang (#2537)

* Create haitang

* Update category-porn

data/haitang

@@ -0,0 +1,20 @@
+# 海棠文化線上文學城
+
+haitangbook.com
+haitbook.com
+htlvbooks.com
+htnewbooks.com
+htwhbook.com
+lmbooks.com
+lmebooks.com
+longmabook.com
+longmabookcn.com
+lovehtbooks.com
+lvhtebook.com
+mybookinlm.com
+myhtebook.com
+myhtebooks.com
+myhtlmebook.com
+newhtbook.com
+urhtbooks.com
+