Add struct tutorial

_emacspeak_tutorials/structs.md

@@ -0,0 +1,14 @@
+---
+title: "Structs in C"
+layout: emacspeak_tutorial
+yt_link: "https://youtu.be/SaUnC_Ofysw"
+zip_link: "/assets/emacspeak-tutorials/structs.zip"
+---
+
+Structs are a way of grouping related data together.
+Think of a struct the same way your would any other noun.
+They often have many individual attributes that combine to make that thing.
+For example, a student may have a first name, last name, student ID, GPA, list of classes, etc.
+In this tutorial I use a very trimmed down version of what a structure generally contains to make the point without overwhelming you.
+
+Hopefully it helps. Let me know about any improvments.