Not all pre-defined networks can be found in V2 doc.

[lcy-seso]

I have a question about v2 API doc.

• As I known the doc is automatically generated from codes, but I fail to find some pre-defined network in V2 API doc.
• For example, provided doc for Network is generated from this source file, but I cannot find bidirectional_gru, is this a bug?

[kuke]

Seems true. I found the bidirectional_lstm but can located bidirectional_gru in v2 doc

[luotao1]

I will fix it ASAP.