Fix typos

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index 4814d50..68b1e40 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -705,7 +705,7 @@
  * - Changes the behaviour of TLS 1.2 clients (not servers) when using the
  *   ECDHE-ECDSA key exchange (not other key exchanges) to make all ECC
  *   computations restartable:
- *   - ECDH operations from the key exchange, only for Short Weierstass
+ *   - ECDH operations from the key exchange, only for Short Weierstrass
  *     curves, only when MBEDTLS_USE_PSA_CRYPTO is not enabled.
  *   - verification of the server's key exchange signature;
  *   - verification of the server's certificate chain;