[docs] Add messing sections
Docs for these sections were not generated at all.
diff --git a/docs/harfbuzz-docs.xml b/docs/harfbuzz-docs.xml
index 99b2d0b..c584151 100644
--- a/docs/harfbuzz-docs.xml
+++ b/docs/harfbuzz-docs.xml
@@ -104,6 +104,8 @@
<xi:include href="xml/hb-ot-font.xml"/>
<xi:include href="xml/hb-ot-layout.xml"/>
<xi:include href="xml/hb-ot-math.xml"/>
+ <xi:include href="xml/hb-ot-meta.xml"/>
+ <xi:include href="xml/hb-ot-metrics.xml"/>
<xi:include href="xml/hb-ot-name.xml"/>
<xi:include href="xml/hb-ot-shape.xml"/>
<xi:include href="xml/hb-ot-var.xml"/>
@@ -123,6 +125,8 @@
<xi:include href="xml/hb-graphite2.xml"/>
<xi:include href="xml/hb-icu.xml"/>
<xi:include href="xml/hb-uniscribe.xml"/>
+ <xi:include href="xml/hb-gdi.xml"/>
+ <xi:include href="xml/hb-directwrite.xml"/>
</chapter>
<!--chapter id="object-tree">