Add a declaration about using this repository.
@@ -1,3 +1,6 @@
+# JUST FOR LEARNING PURPOSES, DON'T USE THIS TO CRACK SOFTWARE.
+# 只是出于学习目的,请勿将其用于破解软件,否则后果自负。用户行为均与本项目作者无关!
+
D9KYN9-MCCL2F-59LFPC-NK2CPX
LSGDW2-6M43UN-KHKH2A-D6FDJF
XPMZGS-3AQRBD-EZKE9K-UPFRL5