Add "Let's learn D programming Game Dev!" video series

README.md

@@ -148,6 +148,7 @@
 * [Functional image processing in D](https://blog.cy.md/2014/03/21/functional-image-processing-in-d/) - A very interesting tutorial about writing an image processing lib in D. Shows the power of D's templates/CTFE/Ranges/UFCS for functional style programming.
 * [OpenGL tutorials](https://github.com/d-gamedev-team/opengl-tutorials) - OpenGL tutorials in D.
 * [Creating a simple JSON serialiser in D](https://bradley.chatha.dev/BlogPost/JsonSerialiser/0) - D metaprogramming tutorial series
+* [Let's learn D programming Game Dev!](https://www.youtube.com/watch?v=j-Zm1zgSxMQ&list=PLgM-lc_kSqFQPF0UXgmFZpZalqcrSofe-&ab_channel=KiRill) - A video series on learning game development with D from Ki Rill. [His channel](https://www.youtube.com/@rillki-dev/) also posts other videos related to D programming.
 
 ### Bare metal / kernel development
 * [D Bare bones](https://wiki.osdev.org/D_Bare_Bones) - kernel hello world in D (using GDC compiler)