Add slides & video resource

README.md

@@ -11,6 +11,12 @@ Geometric Algebra (GA) library based on just-in-time symbolic processing to turn
 
 This package is ready for general use, but it still in active development and bugs may be frequently encountered along with incomplete or unsupported major features. You are welcome to report potential issues or to suggest improvements. When upgrading to a new major version, make sure to consult the [changelog](https://github.com/serenity4/SymbolicGA.jl/blob/main/CHANGELOG.md) to be aware of any major breakages.
 
+### JuliaCon talk
+
+An introduction to geometric algebra with quick presentation of this library is available on YouTube.
+
+- [Slides]([Slides](https://docs.google.com/presentation/d/e/2PACX-1vQ9trJBYfvZXCEoArxRQwYhS_tzGBYOfeY-s7aGZhE8_J-VPbztXbPPgW9uNTjUUrNbf9JWIYjLLngW/pub?start=false&loop=false&delayms=3000))
+
 [![Geometric Algebra at compile-time with SymbolicGA.jl](assets/talk.png)](https://youtu.be/lD4tNcHVjX4)
 
 ## Basic usage

docs/src/explanation/geometric_algebra.md

@@ -20,6 +20,7 @@ In particular, as an algebraic framework and a highly convenient utility, it ver
 
 #### Introductory resources
 - [Very approachable introduction](https://arxiv.org/abs/1205.5935v1) by Eric Chisolm (paper)
+- [A Swift Introduction to Geometric Algebra](https://www.youtube.com/watch?v=60z_hpEAtD8) (video)
 - [Siggraph 2019 talk](https://www.youtube.com/watch?v=tX4H_ctggYo) (video)
 - [Cambridge course](http://geometry.mrao.cam.ac.uk/2016/10/geometric-algebra-2016/)
 - Introductory book: *Vince, J. (2008). Geometric algebra for computer graphics. Springer Science & Business Media.*