Update gitignore to ignore typescript files

alexcrichton · alexcrichton · commit 98f3b9634ef4 · 2018-04-27T13:25:53.000-07:00
diff --git a/.gitignore b/.gitignore
@@ -4,3 +4,4 @@ Cargo.lock
 node_modules
 package-lock.json
 yarn.lock
+*.d.ts
