README: Add PyQtGraph dependency.

diff --git a/README b/README
index 97063bb7609fb349a16e503f9993345b797cc194..8b7bf62490a4fce5e380df0df998223cf33934ab 100644 (file)
--- a/README
+++ b/README
@@ -29,6 +29,7 @@ Requirements
  - Python (2 or 3)
  - PyQt4 or PySide
    (both need at least the QtCore and QtGui components)
+ - PyQtGraph
  - libsigrok >= 0.3.0 (including the Python bindings)