Update README to reflect new release version.

jswrenn · web-flow · commit f7d948b6c647 · 2020-12-26T13:20:26.000-05:00
diff --git a/README.rst b/README.rst
@@ -21,7 +21,7 @@ How to use with cargo:
 .. code:: toml
 
     [dependencies]
-    itertools = "0.9"
+    itertools = "0.10.0"
 
 How to use in your crate:
 
