Add Github Badge to README.md

Author: BrandtHill

README.md

@@ -1,6 +1,7 @@
 # Salchicha
 
 [![hex.pm](https://img.shields.io/hexpm/v/salchicha.svg)](https://hex.pm/packages/salchicha/)
+[![Build Status](https://github.com/BrandtHill/Salchicha/workflows/Elixir%20CI/badge.svg)](https://github.com/BrandtHill/Salchicha/actions)
 
 A pure-ish Elixir cryptography tool for the Salsa20 and ChaCha20 ciphers.
 
@@ -42,4 +43,4 @@ more general-purpose and have analogues in the NaCl/libsodium API.
 
 NaCl/libsodium (and KCl) has a lot of other functionality for public key cryptography
 via EC25519, which erlang's `:crypto` module already supports. I may add some of that 
-here in the future but in the meantime I've just brought over the XSalsa and XChaCha functions.
+here in the future but in the meantime I've just brought over the XSalsa and XChaCha functions.