A problem with Atom

I'm using an editor/compiler called Atom.
I've recently downloaded Marlin 1.1.8.
I am having difficulty with the platformio.ini file
that I do not know how to fix.

In the new file there is a new section called "Common"
In this section there are 2 lines:
https: github com/lincomatic/LiquidTWI2.qit
httpe: github com/trinamic/TMC26XStepper.qit

(Note: I know the separators and period are missing, I just had
to state it this so it would not show up as a link.)

That are causing an error message that I have not been able
to find a fix for. The error is :

Error: VCS: 'git' client is not installed in your system

I have been unable to find the correct paragraph to read yet
on how to resolve this issue. I will keep looking but decided to
ask for help in the mean time.

thank you (?)

I think you need to install Git-Bash. I forget why that is necessary now but it has to do with some repository that needs to be checked out.

Could not find that one, possibly slightly different name?

I did find Git-Bash, but it's external to Atom. I thought it was a "package".

Roxy thank you very much for your help.
It turns out that I had an old version of Git and I have upgraded it now and it started working.
Sorry about my lack of knowledge I will work to improve it.
thank you