replace Li's site URL (upickle and scalatages) (#84)

replace Li's site URL with com-lihaoyi.github.io for upickle and scalatages

Author: phderome

readme.md

@@ -113,9 +113,9 @@ requests.post("https://httpbin.org/post", data = java.nio.file.Paths.get("thing.
 
 The `data` parameter also supports anything that implements the
 [Writable](https://github.com/lihaoyi/geny#writable) interface, such as
-[ujson.Value](http://www.lihaoyi.com/upickle/#uJson)s,
-[uPickle](http://www.lihaoyi.com/upickle)'s `upickle.default.writable` values,
-or [Scalatags](http://www.lihaoyi.com/scalatags/)'s `Tag`s
+[ujson.Value](http://com-lihaoyi.github.io/upickle/#uJson)s,
+[uPickle](http://com-lihaoyi.github.io/upickle)'s `upickle.default.writable` values,
+or [Scalatags](http://com-lihaoyi.github.io/scalatags/)'s `Tag`s
 
 ### Response Content