doc: build json files from the documentation
doc: build json files from the documentation

Change-Id: I30db3a3f0d16cb929c74756a4d1bd8baf2ce8a11
Signed-off-by: Anas Nashif <0d9952ec84ac43c159f6b7e7ed99a9080c00dd6e@intel.com>

tidyjiang8/zephyr-doc,tidyjiang8/zephyr-doc,tidyjiang8/zephyr-doc,tidyjiang8/zephyr-doc,tidyjiang8/zephyr-doc