Fix inconsistencies in tutorial 2

[mroavi]

Venus should revolve faster than the Earth around the sun.
This PR fixes this.
The frames argument was not being passed to the Venus Object.
An inconsistency in the text is also fixed.
The gifs have been re-generated with the fixed code.

PR Checklist

• Did I update CHANGELOG.md with whatever changes/features I added with this PR?
• Did I make sure to only change the part of the file where I introduced a new change/feature?
• Did I cover all corner cases to be close to 100% test coverage (if applicable)?
• Did I properly add Javis dependencies to the Project.toml + set an upper bound of the dependency (if applicable)?
• Did I properly add test dependencies to the test directory (if applicable)?
• Did I check relevant tutorials that may be affected by changes in this PR?
• Did I clearly articulate why this PR was made the way it was and how it was made?

[mroavi]

I noticed that not passing the frames to Object is not an issue since it reuses the value passed to the previous Object. However, this is not explained in this tutorial but rather later in tutorial 3. Hence, I think it is better to pass it explicitly here. This means that the real issue of why the Earth was revolving faster than Venus was because of outdated gifs.

[Ved-Mahajan]

@mroavi Hey, yeah thats correct indeed. I did not notice that while making the gif. The gif just so cool that I really did not bother to check all that!

Thanks a lot for noticing that and fixing it!!!

[Wikunia]

Thanks @mroavi and sorry for the late merge.