update README

Author: TomWambsgans

README.md

@@ -43,13 +43,15 @@ RUSTFLAGS='-C target-cpu=native' cargo run --release -- poseidon --log-n-perms 2
 
 The full recursion program is not finished yet. Instead, we prove validity of a WHIR opening, with 25 variables, and rate = 1/4.
 
+- 1-to-1: Recursive proof of a single WHIR opening
+- n-to-1: Recursive proof of many WHIR openings (≈ 8) (we report prover time per WHIR)
+
 ```console
 RUSTFLAGS='-C target-cpu=native' cargo run --release -- recursion --count 8
 ```
 
 ![Alt text](docs/benchmark_graphs/graphs/recursive_whir_opening.svg)
 
-Detail: before 4 December 2025, only 1 WHIR opening was benchmarked. Starting from now, we prove a dozen of openings together (to be closer to the n-to-1 aggregation scenario) and we report the proving time / WHIR.
 
 ### XMSS aggregation