add dependency python-jsonschema

Change-Id: I070caa88de652dbd9ffbe716e920ea57ee307c14
diff --git a/sphinx/meta/salt.yml b/sphinx/meta/salt.yml
new file mode 100644
index 0000000..14afb1b
--- /dev/null
+++ b/sphinx/meta/salt.yml
@@ -0,0 +1,5 @@
+dependency:
+  engine: pkg
+  pkgs:
+    - python-jsonschema
+