[json-glib] docs: Add missing version macros

[Emmanuele Bassi <ebassi src gnome org>]

commit b1fa040345cb278d44949e7a11bd59e176e6a924
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Aug 24 18:32:25 2020 +0100

    docs: Add missing version macros

 doc/json-glib-sections.txt | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/doc/json-glib-sections.txt b/doc/json-glib-sections.txt
index 556bed3..eaafe9b 100644
--- a/doc/json-glib-sections.txt
+++ b/doc/json-glib-sections.txt
@@ -346,6 +346,10 @@ JSON_VERSION_1_4
 JSON_AVAILABLE_IN_1_4
 JSON_DEPRECATED_IN_1_4
 JSON_DEPRECATED_IN_1_4_FOR
+JSON_VERSION_1_6
+JSON_AVAILABLE_IN_1_6
+JSON_DEPRECATED_IN_1_6
+JSON_DEPRECATED_IN_1_6_FOR
 
 <SUBSECTION Private>
 JSON_ENCODE_VERSION