Typos and clarifications

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/docs/proposed/psa-conditional-inclusion-c.md b/docs/proposed/psa-conditional-inclusion-c.md
index 6267f10..bf969f5 100644
--- a/docs/proposed/psa-conditional-inclusion-c.md
+++ b/docs/proposed/psa-conditional-inclusion-c.md
@@ -111,7 +111,7 @@
 
 When `MBEDTLS_PSA_CRYPTO_CONFIG` is set, the header file `mbedtls/config.h` needs to define all the `MBEDTLS_xxx_C` configuration symbols, including the ones deduced from the PSA crypto configuration. It does this by including the new header file **`mbedtls/config_psa.h`**, which defines the `MBEDTLS_PSA_BUILTIN_xxx` symbols and deduces the corresponding `MBEDTLS_xxx_C` (and other) symbols.
 
-When `MBEDTLS_PSA_CRYPTO_CONFIG` is not set, the configuration of Mbed TLS works as before, and the inclusion of non-PSA code only depends on `MBEDTLS_xxx` symbols defined (or not) in `mbedtls/config.h`. In this case, `mbedtls/config_psa.h` is only needed to build the PSA parts of the library, including `psa/crypto_struct.h`. Therefore, * `psa/crypto_struct.h` needs to include `mbedtls/config_psa.h`.
+When `MBEDTLS_PSA_CRYPTO_CONFIG` is not set, the configuration of Mbed TLS works as before, and the inclusion of non-PSA code only depends on `MBEDTLS_xxx` symbols defined (or not) in `mbedtls/config.h`. In this case, `mbedtls/config_psa.h` is only needed to build the PSA parts of the library, including `psa/crypto_struct.h` (where the layout of some structures depends on the configuration). Therefore, `psa/crypto_struct.h` (or a header that is included before it) needs to include `mbedtls/config_psa.h`.
 
 `mbedtls/config_psa.h` includes two header files:
 
@@ -131,7 +131,7 @@
                            `mbedtls/config_psa.h` (D)
 `PSA_WANT_xxx`             `psa/crypto_config.h` (U)         `mbedtls/config_psa.h (D)
 `MBEDTLS_PSA_BUILTIN_xxx`  `mbedtls/config_psa.h` (D)        `mbedtls/config_psa.h` (D)
-`MBEDTLS_PSA_ACCEL_xxx`    `mbedtls/crypto_drivers` (G)      N/A
+`MBEDTLS_PSA_ACCEL_xxx`    `mbedtls/crypto_drivers.h` (G)    N/A
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