DOC: changed docs for PGPRO-915 after testing, changed tag for zstd to <application>

Author: Liudmila Mantrova

doc/src/sgml/cfs.sgml

@@ -150,8 +150,8 @@
   </para>
 
   <para>
-    By default, CFS uses <literal>zstd</literal> compression library.
-    To enhance security, CFS checks that the compression algorithm used
+    By default, CFS uses <application>zstd</application> compression library.
+    For safety reasons, CFS checks that the compression algorithm used
     in a tablespace corresponds to this library.
   </para>