docs: add polynomial explanation

README.md

@@ -54,6 +54,14 @@ Polynomial = x^4 + 145x^3 + 9x^2 + x + 42
 # (implied) (1x^4)             (1x^1) (42x^0)
 ```
 
+This polynomial represents all the valid combinations of the signers.
+
+Just like Safe, it protects against:
+
+- double signing
+- under signing
+- non-signer signatures
+
 ## A TLDR Of How It works
 
 ### 👷🏽‍♂️ Setup
@@ -100,4 +108,4 @@ forge test
 Some possible solutions are:
 
 - Always spin up a fresh EOA to add as a signer, it's important this account has never made an Ethereum transaction on any chain.
-- Refactor the code to accept a bit of randomness: an `r` value to hash together with each `root`. This makes it impossible to brute force. The `r` value can be as simple as a known `password` has to at least be known by the prover.
+- Refactor the code to accept a bit of randomness: an `r` value to hash together with each `root`. This makes it impossible to brute force. The `r` value can be as simple as a known `password` has to at least be known by the prover.