reviewed list of gradle books - proposal for books.md

[ivonasto]

Books metadata file with existing titles in English from the 2020 list in issue #98.

Images to be added.

[oleg-nenashev]

Thanks for the patch @ivonasto! We can merge the first version without the images, but we will still need books.html to be added to the page. Also, please add the page to the navigation under the Resources section

[oleg-nenashev]

Hi @ivonasto , do you plan to finish this PR? Or is any help needed?

[ivonasto]

Hi, @oleg-nenashev. Yes, I will finish it. I have trouble with the dev container, almost got it working. I have more time now to look into it. Thank you

[oleg-nenashev]

Sure. If you need any help with sorting the issue, just ask on the #docs or #contributing Slack channels

[ivonasto]

Hello, I did the preliminary version. If you have any visual or code suggestions, please let me know.

Could you upload the book covers so I can replace the placeholder image?

[oleg-nenashev]

Since it is deployed from the main branch, good opportunity to do a preview implementation :)