docs: Fix xinclude fallback for annotation glossary
docs: Fix xinclude fallback for annotation glossary

oerdnj/json-glib,frida/json-glib,ebassi/json-glib,ebassi/json-glib,Distrotech/json-glib,frida/json-glib,oerdnj/json-glib,GNOME/json-glib,Distrotech/json-glib,Distrotech/json-glib,ebassi/json-glib,GNOME/json-glib,oerdnj/json-glib,oerdnj/json-glib