diff --git a/README.md b/README.md
index ed9b64d84..698f69fc2 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,6 @@ which aims to provide many conveniences over raw assembly code (even when using
 - constant folding in expressions (compile-time evaluation)
 - automatic type conversions
 - floating point operations
-- optional automatic preserving and restoring CPU registers state, when calling routines that otherwise would clobber these 
 - abstracting away low level aspects such as ZeroPage handling, program startup, explicit memory addresses
 - breakpoints, that let the Vice emulator drop into the monitor if execution hits them
 - source code labels automatically loaded in Vice emulator so it can show them in disassembly
@@ -37,5 +36,3 @@ to provide a small precompiled executable.
 
 Prog8 is mainly targeted at the Commodore-64 machine, but should be mostly system independent.
 
-
-See [the reference document](reference.md) for detailed information.
diff --git a/python-prototype/README.txt b/python-prototype/README.txt
new file mode 100644
index 000000000..1dd39a954
--- /dev/null
+++ b/python-prototype/README.txt
@@ -0,0 +1,4 @@
+This is the old Python version of an early prototype of the language and compiler.
+It was able to produce actual running c64 binary programs, but only
+from a very limited language subset. 
+
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