Add explantion of the recovery_id to the doc

soroban-env-common/env.json

@@ -2000,7 +2000,7 @@
                         }
                     ],
                     "return": "BytesObject",
-                    "docs": "Recovers the SEC-1-encoded ECDSA secp256k1 public key that produced a given 64-byte `signature` over a given 32-byte `msg_digest` (produced by applying a secure cryptographic hash function on the message), for a given `recovery_id` byte. The `signature` is the ECDSA signature `(r, s)` serialized as fixed-size big endian scalar values, both `r`, `s` must be non-zero and `s` must be in the lower range. Returns a `BytesObject` containing 65-bytes representing SEC-1 encoded point in uncompressed format."
+                    "docs": "Recovers the SEC-1-encoded ECDSA secp256k1 public key that produced a given 64-byte `signature` over a given 32-byte `msg_digest` (produced by applying a secure cryptographic hash function on the message), for a given `recovery_id` byte. The `signature` is the ECDSA signature `(r, s)` serialized as fixed-size big endian scalar values, both `r`, `s` must be non-zero and `s` must be in the lower range. Returns a `BytesObject` containing 65-bytes representing SEC-1 encoded point in uncompressed format. The `recovery_id` is an integer value `0`, `1`, `2`, or `3`, the low bit (0/1) indicates the parity of the y-coordinate of the `public_key` (even/odd) and the high bit (3/4) indicate if the `r` (x-coordinate of `k x G`) has overflown during its computation."
                 },
                 {
                     "export": "3",