update readme

Bharat23 · Aug 25, 2020 · 561b880 · 561b880
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commit 561b880
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diff --git a/README.MD b/README.MD
@@ -115,6 +115,7 @@
 | pick | key | str | None | selects a key to be returned
 | pick | keys | list | [] | selects a list key to be returned
 | pick | key_delimiter | str | "." | Separator used to identify multi level JSON
+| pick | key_mapping | dict | {} | Mapping of keys for picking with custom key name. 
 
 - Fetch