You can use http://devdocs.io/ , which can provide you with offline access to the documentation of many libraries and languages, including Tensorflow.
Just go to http://devdocs.io/ , then in the left pane scroll down to the Tensorflow menu and click "enable" in parts of the documentation that interests you.
Then refresh the page, click the "Offline" link in the menu of the top panel and click "Install" in the selected documents that you want to save.
When you go offline, the documents should remain loaded in the browserβs cache and be ready to view even without Internet access.
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