Documentation fixes
Correct indentation, brackets, and comments.
diff --git a/include/mbedtls/ecdsa.h b/include/mbedtls/ecdsa.h
index ba7aba1..f991470 100644
--- a/include/mbedtls/ecdsa.h
+++ b/include/mbedtls/ecdsa.h
@@ -213,7 +213,7 @@
* \param f_rng The RNG function.
* \param p_rng The RNG parameter.
*
- * \note The signature \p sig is expected to be ASN.1 SEQUENCE
+ * \note The signature \p sig is expected to in be ASN.1 SEQUENCE
* format, as described in <em>Standards for Efficient
* Cryptography Group (SECG): SEC1 Elliptic Curve
* Cryptography</em>, section C.5.