[Docs] Add tiny changes to Attestation document

Signed-off-by: Dmitrii Kuvaiskii <[email protected]>

Documentation/attestation.rst

@@ -144,7 +144,7 @@ An example of this low-level interface can be found under
 the remote attestation flow may look like in your application::
 
     sgx_report_data_t user_report_data = {0};
-    memcpy(&user_report_data, "some-dummy-data", sizeof(user_report_data));
+    memcpy(&user_report_data, "some-dummy-data", sizeof("some-dummy-data"));
 
     int fd1 = open("/dev/attestation/user_report_data", O_WRONLY);
     write(fd1, &user_report_data, sizeof(user_report_data));
@@ -220,6 +220,8 @@ this RA-TLS certificate is tied to the enclavized application that generated it.
 
 RA-TLS is shipped as three libraries: ``ra_tls_attest.so``, EPID based
 ``ra_tls_verify_epid.so`` and DCAP/ECDSA based ``ra_tls_verify_dcap.so``.
+The interfaces exposed by these libraries can be found in the following header:
+:file:`Pal/src/host/Linux-SGX/tools/ra-tls/ra_tls.h`.
 
 The examples of using RA-TLS can be found under ``Examples/ra-tls-mbedtls``.