diff --git a/sources/talk/20180122 How to price cryptocurrencies.md b/sources/talk/20180122 How to price cryptocurrencies.md
index 061090db5a..19d785164c 100644
--- a/sources/talk/20180122 How to price cryptocurrencies.md	
+++ b/sources/talk/20180122 How to price cryptocurrencies.md	
@@ -1,3 +1,4 @@
+translating by wyxplus
 How to price cryptocurrencies
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