[PATCH] Documentation/networking/tls-handshake.rst: Fix of minor grammar mistake

The word "a" was used instead of "an" which is grammatically incorrect.
Fix by changing from "a" to "an". This improves readability of the
documentation.

Signed-off-by: Leon Kral <[email protected]>
---
 Documentation/networking/tls-handshake.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/networking/tls-handshake.rst b/Documentation/networking/tls-handshake.rst
index 6f5ea1646a47..4f7bc1087df9 100644
--- a/Documentation/networking/tls-handshake.rst
+++ b/Documentation/networking/tls-handshake.rst
@@ -7,7 +7,7 @@ In-Kernel TLS Handshake
 Overview
 ========
 
-Transport Layer Security (TLS) is a Upper Layer Protocol (ULP) that runs
+Transport Layer Security (TLS) is an Upper Layer Protocol (ULP) that runs
 over TCP. TLS provides end-to-end data integrity and confidentiality in
 addition to peer authentication.
 
-- 
2.53.0