session: improve .api comments slightly

Type: style

Change-Id: Iccd2c205059abcdf121093ff03da603fe3dda1f7
Signed-off-by: Vratko Polak <vrpolak@cisco.com>
diff --git a/src/vnet/session/session.api b/src/vnet/session/session.api
index 911ffa6..091b876 100644
--- a/src/vnet/session/session.api
+++ b/src/vnet/session/session.api
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2015-2020 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -41,7 +41,7 @@
     string namespace_id[];
  };
 
- /** \brief Application attach reply
+/** \brief Application attach reply
     @param context - sender context, to match reply w/ request
     @param retval - return code for the request
     @param app_mq - app message queue
@@ -70,7 +70,7 @@
     string segment_name[];
 };
 
- /** \brief client->vpp, attach application to session layer
+/** \brief Application detach from session layer
     @param client_index - opaque cookie to identify the sender
     @param context - sender context, to match reply w/ request
 */