[PATCH 11/11] qga/qapi-schema: Add a proper introduction

[Markus Armbruster <armbru@redhat.com>]

Contents adapted from qapi/qapi-schema.json.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qga/qapi-schema.json | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index 35ec0e7db3..5316bfacbf 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -2,10 +2,24 @@
 # vim: filetype=python
 
 ##
-# = QEMU guest agent protocol commands and structs
+# This manual describes the commands supported by the QEMU Guest
+# Agent Protocol.
 #
-# For a concise listing of all commands, events, and types in the QEMU
-# guest agent, please consult the `qapi-qga-index`.
+# For locating  a particular item, please see the `qapi-qga-index`.
+#
+# The following notation is used in examples:
+#
+# .. qmp-example::
+#
+#   -> ... text sent by client (commands) ...
+#   <- ... text sent by server (command responses and events) ...
+#
+# Example text is formatted for readability.  However, in real
+# protocol usage, its commonly emitted as a single line.
+#
+# Please refer to the
+# :doc:`QEMU Machine Protocol Specification </interop/qmp-spec>`
+# for the general format of commands, responses, and events.
 ##
 
 { 'pragma': { 'doc-required': true } }
-- 
2.48.1