Added file I/O and file access API

git-svn-id: https://svn.pjsip.org/repos/pjproject/main@18 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjlib/include/pj/addr_resolv.h b/pjlib/include/pj/addr_resolv.h
index 1a47cf0..1da9208 100644
--- a/pjlib/include/pj/addr_resolv.h
+++ b/pjlib/include/pj/addr_resolv.h
@@ -14,7 +14,7 @@
 PJ_BEGIN_DECL
 
 /**
- * @defgroup pj_addr_resolve Address Resolution
+ * @defgroup pj_addr_resolve Network Address Resolution
  * @ingroup PJ_IO
  * @{
  *