From 2edfa7e16aac63d886f3617ae5879a49d943b011 Mon Sep 17 00:00:00 2001
From: Pete Shadbolt <hello@peteshadbolt.co.uk>
Date: Mon, 8 Oct 2018 10:34:58 -0700
Subject: [PATCH] Add requirements.txt, update README

---
 README.md        | 8 +++++++-
 requirements.txt | 4 ++++
 2 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 requirements.txt

diff --git a/README.md b/README.md
index a53de9b..17ef487 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,9 @@
 # Driven coupled parametric oscillators
 
-Settling a discussion from the pub.
+Settling a discussion from the pub. Yes, you can extract energy from an infinite source of energy. That's allowed.
+
+In [this video](demo.webm) I am modulating the spring constant.
+
+```
+python main.py
+```
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..0577695
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,4 @@
+jedi==0.13.1
+numpy==1.15.2
+parso==0.3.1
+pygame==1.9.4