1 files changed, 2 insertions, 0 deletions

diff --git a/readme.md b/readme.md
index 139ebca..edc9e5c 100644
--- a/readme.md
+++ b/readme.md
@@ -579,3 +579,5 @@ http://opensource.org/licenses/BSD-3-Clause
 ## Author
 MITSUNARI Shigeo([email protected])
 
+## Sponsors welcome
+[GitHub Sponsor](https://github.com/sponsors/herumi)