Update HISTORY

Vianney Taquet · Vianney Taquet · commit 63c8f9b40bad · 2021-06-04T15:40:37.000+02:00
diff --git a/HISTORY.rst b/HISTORY.rst
@@ -2,7 +2,7 @@
 History
 =======
 
-0.2.1 (2021-XX-XX)
+0.2.1 (2021-06-04)
 ------------------
 
 * Add `cv="prefit"` option
