Add blogs on the architecture of Spyder

[PurveshBaghele]

We are a group of students from TU Delft currently doing a course on Software Architecture. We've written a nice blog on the "Product Vision" of Spyder which includes system components analysis, stakeholders' analysis, and end-user mental model.
We are also going to come up with a good blog series on the architecture of Spyder starting from the product vision all the way to the deployment views. We thought that this could be a nice contribution to the blog section of Spyder's website or somewhere you feel appropriate. Please let us know what you think about this.
Of course feel free to provide any feedback or changes that should be made to the blog from our side.
Thank you!