diff --git a/README.md b/README.md
index c073db7..f0b800f 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,17 @@
 # netrun
 
-Run scripts from the Internet more securely than `curl | bash` (experimental)
+Run scripts from the Internet in a way that is safer and more secure than
+running `curl <url> | bash`
+
+## Work in Progress
+
+`netrun` is still experimental; don't rely on its working properly. In
+particular, HTTP response codes are ignored (see #1) and command line syntax is
+not checked (see #2).
 
 ## Try it
 
+    git clone https://git.kj7rrv.com/kj7rrv/netrun
+    cd netrun
     pip3 install -r requirements.txt
     python3 netrun.py https://git.kj7rrv.com/kj7rrv/netrun/raw/branch/master/demo_script.sh