add black trans flag

README.md

@@ -9,6 +9,7 @@ All are welcome to use and re-purpose our emoji files as they see fit.
 ![:agender_flag:](dist/pride/agender-flag.png?raw=true ":agender_flag:")
 ![:aromantic_flag:](dist/pride/aromantic-flag.png?raw=true ":aromantic_flag:")
 ![:asexual_flag:](dist/pride/asexual-flag.png?raw=true ":asexual_flag:")
+![:black_transgender_flag:](dist/pride/black_transgender-flag.png?raw=true ":black_transgender_flag:")
 ![:bigender_flag:](dist/pride/bigender-flag.png?raw=true ":bigender_flag:")
 ![:bisexual_flag:](dist/pride/bisexual-flag.png?raw=true ":bisexual_flag:")
 ![:demisexual_flag:](dist/pride/demisexual-flag.png?raw=true ":demisexual_flag:")

src/pride/black-transgender-flag.svg

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 672 480">
+  <path fill="#5BCEFA" d="M0 0h672v480H0z"/>
+  <path fill="#F5A9B8" d="M0 96h672v288H0z"/>
+  <path fill="#2C2C2C" d="M0 192h672v96H0z"/>
+</svg>