tweak: clean README, add benchmarks

README.md

@@ -8,21 +8,36 @@ The title of this repository is a pun on two meanings of "time to": "how much ti
 
 ## Current languages
 
-- Python
+- [x] Python
-- R
+- [x] R
-- Squiggle 
+- [x] Squiggle 
+- [x] Javascript (NodeJS)
+- [x] C
+
+## Performance table
+
+With the [time](https://man7.org/linux/man-pages/man1/time.1.html) tool, using 1M samples:
+
+| Language | Time      |
+|----------|-----------|
+| C        | 0m0,442s  |
+| Squiggle | 0m0,488s  |
+| Node     | 0m0,732s  |
+| R        | 0m7,000s  |
+| Python (CPython)  | 0m16,641s |
+
+I was very surprised that Node/Squiggle code was almost as fast as the raw C code. For the Python code, it's possible that the lack of speed is more a function of me not being as familiar with Python. It's also very possible that the code would run faster with [PyPy](https://doc.pypy.org)
  
 ## Languages I may add later
 
-- Javascript
+- Julia (TuringML) 
-- Julia 
 - Rust
-- C
+- Lisp
 - ... and suggestions welcome
 
 ## Roadmap
 
-uhe future of this project is uncertain. In most words, I simply forget about this repository.
+The future of this project is uncertain. In most words, I simply forget about this repository.
 
 ## Other similar projects