Bump version to v3.7.1 (#241)

Co-authored-by: deryzhou <deryzhou@deryzhou-mb0.tencent.com>

Author: upbit

README.md

@@ -342,7 +342,7 @@ print(">>> %s, origin url: %s" % (illust.title, illust.image_urls['large']))
 
 ## Make a release
 
-> Bump version in `pixivpy3/__init__.py`, rebuild dist/*
+> Bump version in `pixivpy3/VERSION`, rebuild dist/*
 
 ```bash
 python3 setup.py sdist bdist_wheel

pixivpy3/VERSION

@@ -1 +1 @@
-3.7.0
+3.7.1