[llvm] Pr from here (PR #72239)

[David Spickett via llvm-commits]

https://github.com/DavidSpickett created https://github.com/llvm/llvm-project/pull/72239

None

>From a0e5fc9d548d230de2aa874e6a97e0a3e4481c11 Mon Sep 17 00:00:00 2001
From: David Spickett <david.spickett at linaro.org>
Date: Mon, 13 Nov 2023 13:18:16 +0000
Subject: [PATCH 1/2] Prototype action

---
 .github/workflows/pr-greeting.yml | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 .github/workflows/pr-greeting.yml

diff --git a/.github/workflows/pr-greeting.yml b/.github/workflows/pr-greeting.yml
new file mode 100644
index 000000000000000..922c8cd58300c8a
--- /dev/null
+++ b/.github/workflows/pr-greeting.yml
@@ -0,0 +1,16 @@
+name: PR Subscriber
+
+on:
+  pull_request_target: opened
+
+permissions:
+  contents: write
+
+jobs:
+  auto-subscribe:
+    runs-on: ubuntu-latest
+    if: github.repository == 'DavidSpickett/llvm-project'
+    steps:
+      - name: Setup Automation Script
+        run: |
+          echo "Hello actions"

>From 6fe362ff5fb8672712af2e257a54ac0913d5829e Mon Sep 17 00:00:00 2001
From: David Spickett <david.spickett at linaro.org>
Date: Mon, 13 Nov 2023 13:21:11 +0000
Subject: [PATCH 2/2] Test PR

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 4ae7eaf9b083a57..64ca27cf734c16c 100644
--- a/README.md
+++ b/README.md
@@ -40,3 +40,5 @@ chat](https://discord.gg/xS7Z362),
 
 The LLVM project has adopted a [code of conduct](https://llvm.org/docs/CodeOfConduct.html) for
 participants to all modes of communication within the project.
+
+...t