Include dom_sink in the generated docs

Author: SimonSapin

scripts/travis-build.sh

@@ -10,7 +10,6 @@
 
 set -ex
 
-cargo doc
 cargo test --no-run
 cargo test | ./scripts/shrink-test-output.py
 r=${PIPESTATUS[0]}
@@ -22,3 +21,6 @@ r=${PIPESTATUS[0]}
 if [ $r -ne 0 ]; then exit $r; fi
 
 cargo test --manifest-path capi/Cargo.toml
+
+cargo doc --manifest-path dom_sink/Cargo.toml
+mv dom_sink/target/doc target/doc