When I looked at it, there was no attachment, about 3 lines of in article code and very little narrative.
The codeproject also uses a multi-moderation process, it needs to see 5 people reject before the item was closed. So others must be in agreement.
I see you have now created another one with an attachment, but you need to include sufficient discussion in the article and not rely on just an attachment. I am afraid your latest one will go the same way unless you bulk up the narrative.
The comments others have left are valid, go and look at some of the other highly rated articles e.g. from Sacha Barber or Pete O'Hanlon to name just two, and you will see the effort required to make an article.