Updating APPC Titles

Updating the titles in the APPC docs
for title consistency and legiblity purposes.

Change-Id: I603b8fa690630ce1d784fd51eabaecb230c90fe3
Signed-off-by: Hector Anapan <ha076r@att.com>
Issue-Id:[APPC-303]
diff --git a/docs/APPC Client Library Guide/APPC Client Library Guide.rst b/docs/APPC Client Library Guide/APPC Client Library Guide.rst
index 26d1305..32a757a 100644
--- a/docs/APPC Client Library Guide/APPC Client Library Guide.rst
+++ b/docs/APPC Client Library Guide/APPC Client Library Guide.rst
@@ -18,9 +18,9 @@
 
 .. _appc_client_library:
 
-==================================================
-Application Controller (APPC) Client Library Guide
-==================================================
+=========================
+APPC Client Library Guide
+=========================
 
 
 Introduction