Corrected the automatic installation of third-party tool setups and
libraries (for now, specifically the xschem setup and the alphanumeric
layout library), and cleaned up the instructions to make it clear how
to do the installation in the most common case.
diff --git a/README b/README
index fce389d..9514ed0 100644
--- a/README
+++ b/README
@@ -3,15 +3,27 @@
----------------------------------------------------------------------------------
-Written by Tim Edwards 2019 / 2020 for efabless (efabless.com)
+Written by Tim Edwards 2019 - 2021 for efabless (efabless.com)
and Open Circuit Design (opencircuitdesign.com)
URL: http://opencircuitdesign.com/open_pdks
+Mirror URL: https://github.com/RTimothyEdwards/open_pdks
Distributed under the Apache-2.0 license (see file LICENSE).
----------------------------------------------------------------------------------
+Quick Install:
+
+ Looking to install the Google/SkyWater SKY130 PDK libraries and setup
+ files for open source EDA tools? Read the README file in the sky130/
+ directory.
+
+ The rest of this README file is general information about open_pdks
+ and is not specific to any single PDK.
+
+----------------------------------------------------------------------------------
+
Introduction:
Silicon foundry PDKs are notoriously non-standard, and files obtained
