Fix typos.
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 241d9cc..a93c09a 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -279,9 +279,9 @@
A string is a sequence of values that represent Unicode codepoints.
All the codepoints in range ``U+0000 - U+10FFFF`` can be represented
in a string. Python doesn't have a :c:type:`chr` type, and
- every characters in the string is represented as a string object
- with length ``1``. The built-in function :func:`chr` converts a
- character to its codepoint (as an integer); :func:`ord` converts
+ every character in the string is represented as a string object
+ with length ``1``. The built-in function :func:`ord` converts a
+ character to its codepoint (as an integer); :func:`chr` converts
an integer in range ``0 - 10FFFF`` to the corresponding character.
:meth:`str.encode` can be used to convert a :class:`str` to
:class:`bytes` using the given encoding, and :meth:`bytes.decode` can