Minor grammar improvement to io documentation. (GH-10329)


Independently of -> Independent of
(cherry picked from commit cd449806fac1246cb7b4d392026fe6986ec01fb7)

Co-authored-by: Srinivas  Thatiparthy (శ్రీనివాస్  తాటిపర్తి) <thatiparthysreenivas@gmail.com>
diff --git a/Doc/library/io.rst b/Doc/library/io.rst
index 2536c37e..7068e68 100644
--- a/Doc/library/io.rst
+++ b/Doc/library/io.rst
@@ -31,7 +31,7 @@
 categories is called a :term:`file object`.  Other common terms are *stream*
 and *file-like object*.
 
-Independently of its category, each concrete stream object will also have
+Independent of its category, each concrete stream object will also have
 various capabilities: it can be read-only, write-only, or read-write. It can
 also allow arbitrary random access (seeking forwards or backwards to any
 location), or only sequential access (for example in the case of a socket or