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+Under the opencc folder ,these are the opencc configuration files.
+
+the following three files are currently been used in GoldenDict.
+```
+s2tw.json
+s2hk.json
+t2s.json
+```
+- how to specify other configuration files?
+
+1. create a custom file ,such as custom.txt
+
+![image](https://user-images.githubusercontent.com/105986/192209053-82f316ca-8657-4a59-af50-6e704d155fad.png)
+
+2. modify the \*.json file, add add the new custom.txt to the configuration .
+
+![image](https://user-images.githubusercontent.com/105986/192209129-ebc9efe7-ce82-4d4d-ad52-1b3c33eaf270.png)
+
+
+any other valid opencc configuration solutions should also work here.