As jgalt212 noted, putting something into a document doesn't make it enforceable. However, I think if Google wants to fire you for revealing the menu, that's a

As jgalt212 noted, putting something into a document doesn't make it enforceable. However, I think if Google wants to fire you for revealing the menu, that's actually well within their rights. Most Google employees in the US are At Will and can be fired for almost any reason. Moreover, they have this right regardless of whether it's written down.