Here are all 3 images

To use this node, plane track documentation is needed, which is currently not updated. Is anyone working on that? if not, shall I update it? I believe I have to notify people that I am updating it. Any ideas how to do that?

@Shubham Gupta (shubham0209) I was going to work on it but I found that I don't have enough knowledge of the area. So I would love some help on this. There is also a task for it, see T42937

I got a few questions. What is repository, and is there a list of repositories available somewhere? How to commit a diff? Who all can commit a diff?

1. Setting the repository is not needed. (Definition is a location for storage, often for safety or preservation. This is where all the .rst files for the manual are stored on a server to be compiled whenever an update is made)

2. Here is a list of Blender's repositories: https://developer.blender.org/diffusion/

3. How to commit, you must first have commit rights (see #4) then you can use svn to commit with svn commit -m "Commit message" (See http://openoffice.apache.org/svn-basics.html#committing-a-file) However, most of the time I just use a GUI client such as Smart SVN for windows to manage this.

4. Anyone who belongs to the Documentation project has commit rights to rBM and rBMT

So, do I have to claim a project to commit?

Currently, I have tried both the CLI and GUI method and it is not committing.

Like I said in #4 you must belong to Documentation to be able to commit. Only an administrator has access to add people to the task. (Something I am not)

How would you know if you belong or not?

Check this page out https://developer.blender.org/project/profile/53/