Fix minor errors in key derivation and key agreement documentation
diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index 3ed5f0f..b2f3eb2 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -3129,9 +3129,9 @@
* public key type corresponding to the type of
* private_key. That is, this function performs the
* equivalent of
- * `psa_import_key(internal_public_key_handle,
- * PSA_KEY_TYPE_PUBLIC_KEY_OF_KEYPAIR(private_key_type),
- * peer_key, peer_key_length)` where
+ * #psa_import_key(`internal_public_key_handle`,
+ * #PSA_KEY_TYPE_PUBLIC_KEY_OF_KEYPAIR(`private_key_type`),
+ * `peer_key`, `peer_key_length`) where
* `private_key_type` is the type of `private_key`.
* For example, for EC keys, this means that peer_key
* is interpreted as a point on the curve that the
@@ -3175,6 +3175,10 @@
* a key derivation, use psa_key_agreement() and other functions from
* the key derivation and generator interface.
*
+ * \param alg The key agreement algorithm to compute
+ * (\c PSA_ALG_XXX value such that
+ * #PSA_ALG_IS_RAW_KEY_AGREEMENT(\p alg)
+ * is true).
* \param private_key Handle to the private key to use.
* \param[in] peer_key Public key of the peer. It must be
* in the same format that psa_import_key()