really use backticks in string conversion definition; thanks to Jonathan Blakes from docs@
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
index e2cc80d..084c6e4 100644
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -347,7 +347,7 @@
 quotes:
 
 .. productionlist::
-   string_conversion: "'" `expression_list` "'"
+   string_conversion: "`" `expression_list` "`"
 
 A string conversion evaluates the contained expression list and converts the
 resulting object into a string according to rules specific to its type.