GitHub workflows apparently can't be symlinks

ChangeLog:

	* README.md: Update URLs. Add REUSE badge.
	* fair-software.yml: Removed.
	* reuse.yml: Removed.

.github/workflows/fair-software.yml

@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: CC0-1.0
+# SPDX-FileCopyrightText: 2023–2024 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH / Matthias Kretz <[email protected]>
+
+name: fair-software
+
+on:
+  push:
+    branches: [ master, main ]
+
+jobs:
+  verify:
+    name: "fair-software"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          repository: mattkretz/howfairis
+          path: howfairis
+
+      - name: Install mattkretz/howfairis
+        run: pip install ./howfairis
+
+      - name: Measure compliance with fair-software.eu recommendations
+        env:
+          PYCHARM_HOSTED: "Trick colorama into displaying colored output"
+        run: howfairis "https://github.com/${{ github.repository }}"

.github/workflows/reuse.yml

@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: 2020 Free Software Foundation Europe e.V.
+# SPDX-License-Identifier: CC0-1.0
+name: REUSE Compliance Check
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: REUSE Compliance Check
+        uses: fsfe/reuse-action@v4

README.md

@@ -3,15 +3,17 @@ SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2024 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH <https://gsi.de>
 -->
 
+[![REUSE status](https://github.com/GSI-HPC/github-workflow-templates/actions/workflows/reuse.yml/badge.svg)](https://github.com/GSI-HPC/github-workflow-templates/actions/workflows/reuse.yml)
+
 ## How to use in your project
 
 ```sh
 cd <your repo root>
-wget https://github.com/GSI-HPC/github-workflow-templates/raw/refs/heads/master/.pre-commit-config.yaml
+wget https://github.com/GSI-HPC/github-workflow-templates/raw/refs/heads/main/.pre-commit-config.yaml
 mkdir -p .github/workflows
 cd .github/workflows
-wget https://github.com/GSI-HPC/github-workflow-templates/raw/refs/heads/master/fair-software.yml
-wget https://github.com/GSI-HPC/github-workflow-templates/raw/refs/heads/master/reuse.yml
+wget https://github.com/GSI-HPC/github-workflow-templates/raw/refs/heads/main/.github/workflows/fair-software.yml
+wget https://github.com/GSI-HPC/github-workflow-templates/raw/refs/heads/main/.github/workflows/reuse.yml
 cd ../..
 git add .pre-commit-config.yaml .github/workflows/fair-software.yml .github/workflows/reuse.yml
 ```