bpo-31865: Fix a couple of typos in the html.unescape() docs. (GH-9663)

(cherry picked from commit 30534cc7172f36092e0002bb7df482edc0d539ce)

Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>
diff --git a/Doc/library/html.rst b/Doc/library/html.rst
index d0706bc..c2b01e1 100644
--- a/Doc/library/html.rst
+++ b/Doc/library/html.rst
@@ -24,7 +24,7 @@
 .. function:: unescape(s)
 
    Convert all named and numeric character references (e.g. ``&gt;``,
-   ``&#62;``, ``&x3e;``) in the string *s* to the corresponding unicode
+   ``&#62;``, ``&#x3e;``) in the string *s* to the corresponding Unicode
    characters.  This function uses the rules defined by the HTML 5 standard
    for both valid and invalid character references, and the :data:`list of
    HTML 5 named character references <html.entities.html5>`.