How can I manually add User Manual to Unity?

HI
I have downloaded Unity User Manual (2019.1) from this link
Now how can I add it to Unity without using Unity Hub?
Because Unity Hub wants to download the file and it has no option to locate it on my pc

Why on earth would you download the documentation manually when it comes with the Unity installation? Unity has so many different versions and each has it’s own documentation.

Packing the wrong documentation to a different Unity version wouldn’t make any sense. If you just forget to install it just extract it to the folder. In my case the 2019.2.0a6 (which is an alpha version) the documentation folder is:

C:\Program Files\Unity\Hub\Editor\2019.2.0a6\Editor\Data\Documentation\

However the relative path of the documentation hasn’t changed since version 2.6 which is still

\Editor\Data\Documentation\

regardless of how or where you have installed Unity. Inside the folder you usually have a sub folder for the language (usually just “en”).

Hello again
This was my first post in this community and I’m being disappointed because there is no answer to a clear question that was asked 3 days ago.
If there is no way then say “there is no way”; It would be much better than this waiting.
Thanks