Update license metadata to link to actual `creativeml-openrail-m` license (#3)

- Update license metadata to link to actual `creativeml-openrail-m` license (21cb0abe0e3292981aaec713ef500a5e19ab3bed)

README.md

@@ -1,5 +1,5 @@
 ---
-license: other
+license: creativeml-openrail-m
 tags:
 - stable-diffusion
 - stable-diffusion-diffusers