Dear Tsoding,

I am watching your video and I am trying to duplicate your result. But I stumble on a problem with your file points.svg. Whatever the software I use (Inksape, Gim or Firefox), I receive an error of parsing like this one from Firefox:

Analysis error XML :badly form
Path : file:///D:/Cours/Cours%20Data-Driven%20Astronomy/Week_2/points.svg
line number 53, Colomne 69 :

Can you help me on this please? I would really appreciate your help.
Thanks in advance
Mario