Auto merge of #204 - nox:fix-doc, r=jdm
Auto merge of #204 - nox:fix-doc, r=jdm

Fix documentation in batch_builder

Blocks annotated with `ignore` are not tested, but are still considered Rust code.

servo/webrender,servo/webrender,alanamramjit/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender,alanamramjit/webrender