Basic setup instructions in README

README.md

@@ -1,6 +1,7 @@
 # C-KZG-4844: A minimal library for EIP-4844 Polynomial Commitments
 
 This is a copy of C-KZG stripped down to support the [Polynomial Commitments](https://github.com/ethereum/consensus-specs/blob/dev/specs/eip4844/polynomial-commitments.md) API:
+
 - `compute_aggregate_kzg_proof`
 - `verify_aggregate_kzg_proof`
 - `blob_to_kzg_commitment`
@@ -9,3 +10,25 @@ This is a copy of C-KZG stripped down to support the [Polynomial Commitments](ht
 We also provide `load_trusted_setup` and `free_trusted_setup` to load the
 trusted setup data from a file into an object that can be passed to the API
 functions, and functions for converting commitments/proofs/points to/from bytes.
+
+## Installation
+
+Install the blst submodule
+
+```
+git submodule update --init
+```
+
+Build blst
+
+```
+cd src
+make blst
+```
+
+Build the C-KZG code
+
+```
+cd src
+make
+```