[3.14] tiny edit, fix a couple of minor typos in enum and sqlite3 docs (GH-148580) (#148581)

tiny edit, fix a couple of minor typos in enum and sqlite3 docs (GH-148580)

pair of minor doc typo fixes
(cherry picked from commit 236aa0a)

Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com>

Author: miss-islington

Doc/library/enum.rst

@@ -245,7 +245,7 @@ Data types
 
    .. method:: EnumType.__len__(cls)
 
-      Returns the number of member in *cls*::
+      Returns the number of members in *cls*::
 
         >>> len(Color)
         3

Doc/library/sqlite3.rst

@@ -57,7 +57,7 @@ This document includes four main sections:
       PEP written by Marc-André Lemburg.
 
 
-.. We use the following practises for SQL code:
+.. We use the following practices for SQL code:
    - UPPERCASE for keywords
    - snake_case for schema
    - single quotes for string literals