Add Peter Pentchev's Python solutions to 286

Also fix a couple of things in the other files:
- make the TAP test functions accept an arrayref for the command to run
  instead of a single string, since we want to run the Python solution using
  `python3 -B -u /path/to/the/program`
- fix the use of Test::More::skip() in the Self Spammer test function
- fix a shadowed variable in the Order Game test function
- correct the indentation in the documentation's "Implementation details" section
- make the README file a copy of docs/index.md instead of a wrong copy of
  a completely different project's README file
- point blog.txt to the Ringlet copy of this challenge's documentation

1 files changed, 47 insertions, 0 deletions

diff --git a/challenge-286/ppentchev/tests/04-python-ch-2.t b/challenge-286/ppentchev/tests/04-python-ch-2.t
new file mode 100644
index 0000000000..1d36b91a85
--- /dev/null
+++ b/challenge-286/ppentchev/tests/04-python-ch-2.t
@@ -0,0 +1,47 @@
+#!/usr/bin/perl
+# SPDX-FileCopyrightText: Peter Pentchev <roam@ringlet.net>
+# SPDX-License-Identifier: BSD-2-Clause
+
+use v5.16;
+use strict;
+use warnings;
+
+use Test::More;
+
+use lib 'tests/lib';
+
+use PWCTest::Ch286 qw(
+	find_python3
+	test_order_game
+	test_order_game_count
+	test_order_game_default
+);
+
+my $py3;
+BEGIN {
+	$py3 = find_python3;
+}
+
+if (!defined $py3) {
+	plan skip_all => 'no Python 3 interpreter found';
+	exit 0;
+}
+
+plan tests => 2;
+
+use constant PROG => 'python/scripts/ch-2.py';
+
+my $py3_prog = [$py3, '-B', '-u', '--', PROG];
+
+subtest order_game_default => sub {
+	test_order_game_default $py3_prog;
+};
+
+subtest order_game => sub {
+    plan tests => test_order_game_count;
+    for my $idx (1..test_order_game_count) {
+        subtest "run $idx" => sub {
+            test_order_game $py3_prog, $idx - 1;
+        };
+    }
+};