Added promise per issue #2088

quicklisp · quicklisp · commit 4ec3795136b5 · 2021-09-22T19:28:37.000-04:00
diff --git a/projects/promise/source.txt b/projects/promise/source.txt
@@ -0,0 +1 @@
+git https://github.com/shinmera/promise.git

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+git https://github.com/shinmera/promise.git`