ci: mv update-contributing.py scripts/

Signed-off-by: Unai Martinez-Corral <[email protected]>

.github/scripts/update-contributing.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2017-2020  The Project X-Ray Authors.
+#
+# Use of this source code is governed by a ISC-style
+# license that can be found in the LICENSE file or at
+# https://opensource.org/licenses/ISC
+#
+# SPDX-License-Identifier: ISC
+
+# Header
+contrib = ["""\
+# Contributing to Project X-Ray
+"""]
+
+# Extract the "Contributing" section from README.md
+found = False
+for line in open('README.md'):
+    if found:
+        if line.startswith('# '):
+            # Found the next top level header
+            break
+        contrib.append(line)
+    else:
+        if line.startswith('# Contributing'):
+            found = True
+
+# Footer
+contrib.append(
+    """\
+
+
+
+
+
+
+----
+
+This file is generated from [README.md](README.md), please edit that file then
+run the `./.github/update-contributing.py`.
+
+""")
+
+open("CONTRIBUTING.md", "w").write("".join(contrib))