From b89ab3d23239bd1dd737c306ba6c6f6545909915 Mon Sep 17 00:00:00 2001
From: Prashant Raj <prashant@argonaut.dev>
Date: Mon, 9 Sep 2024 10:11:33 +0530
Subject: [PATCH] chore: add snapshot key reference (#19)

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index b419a4a..35da5f1 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,9 @@ Invoking the action creates the snapshot of the runner. To use the snapshot in
 subsequent runs, specify the snapshot alias in the `runs-on` field of the job as
 shown above.
 
+If the runner machine is made from a snapshot, it will have an environment
+variable `WARPBUILD_SNAPSHOT_KEY` set to the alias of the snapshot.
+
 ### Inputs
 
 - **alias** (Required): A unique alias for the snapshot. This helps identify and