Update SMB-file-shares.md (#475)

Author: abracchi-tw

products/access/src/content/protocols-and-connections/SMB-file-shares.md

@@ -14,7 +14,7 @@ order: 4
 
 </Aside>
 
-The Secure Messaging Block (SMB) protocol allows users to access, read, and write to shared files.
+The Server Message Block (SMB) protocol allows users to access, read, and write to shared files.
 
 Cloudflare Access provides a mechanism for end users to authenticate with their single sign-on (SSO) provider and connect to shared files over SMB without being on a virtual private network (VPN).