Improve migration guide
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/docs/3.0-migration-guide.d/rsa-padding.md b/docs/3.0-migration-guide.d/rsa-padding.md
index a04d9ee..f10ece6 100644
--- a/docs/3.0-migration-guide.d/rsa-padding.md
+++ b/docs/3.0-migration-guide.d/rsa-padding.md
@@ -9,21 +9,21 @@
you were using the PKCS#1 v2.1 encoding you now need, subsequently to the call
to mbedtls_rsa_init(), to call mbedtls_rsa_set_padding() to set it.
-Code migration examples:
+To choose the padding type when initializing a context, instead of
```C
mbedtls_rsa_init(ctx, padding, hash_id);
```
-to
+, use
```C
mbedtls_rsa_init(ctx);
mbedtls_rsa_set_padding(ctx, padding, hash_id);
```
-or
+
+To use PKCS#1 v1.5 padding, instead of
```C
mbedtls_rsa_init(ctx, MBEDTLS_RSA_PKCS_V15, <ignored>);
```
-to
+, just use
```C
mbedtls_rsa_init(ctx);
```
-