docs: Apply suggestions from code review

Co-authored-by: Zaiming (Stone) Shi <zmstone@gmail.com>

changes/ce/feat-11721.en.md

@@ -4,7 +4,7 @@ Enhance TLS listener to support more flexible TLS verifications.
 
   If the option `partial_chain` is set to `true`, allow connections with incomplete certificate chains.
   
-  Check the description in emqx schema for more. 
+  Check the configuration manual document for more details.
   
 - Certificate KeyUsage Validation
 
@@ -18,5 +18,5 @@ Enhance TLS listener to support more flexible TLS verifications.
   example:
      "serverAuth,OID:1.3.6.1.5.5.7.3.2"
     
-  Check the description in emqx schema for more. 
+  Check the configuration manual document for more details.
      

rel/i18n/emqx_schema.hocon

@@ -679,28 +679,20 @@ common_ssl_opts_schema_verify.label:
 """Verify peer"""
 
 common_ssl_opts_schema_partial_chain.desc:
-"""Enable or disable peer verification with partial_chain:
-- `false`
-- `true`
-- `cacert_from_cacertfile`
-- `two_cacerts_from_cacertfile`
-
+"""Enable or disable peer verification with partial_chain.
 When local verifies a peer certificate during the x509 path validation
 process, it constructs a certificate chain that starts with the peer
 certificate and ends with a trust anchor.
-
-By default, if the setting is set to `false`, the trust anchor is the
-rootCA, and the certificate chain must be complete.
-
-If the setting is set to `true` or `cacert_from_cacertfile`,
-the last certificate in the cacertfile will be used as the trust anchor
-certificate (such as an intermediate CA). This creates a partial chain
+By default, if it is set to `false`, the trust anchor is the
+Root CA, and the certificate chain must be complete.
+However, if the setting is set to `true` or `cacert_from_cacertfile`,
+the last certificate in `cacertfile` will be used as the trust anchor
+certificate (intermediate CA). This creates a partial chain
 in the path validation.
-
-Alternatively, if the setting is set to `two_cacerts_from_cacertfile`,
-one of the last two certificates in the cacertfile will be used as the
+Alternatively, if it is configured with `two_cacerts_from_cacertfile`,
+one of the last two certificates in `cacertfile` will be used as the
 trust anchor certificate, forming a partial chain. This option is
-particularly useful for CA certificate rotation.
+particularly useful for intermediate CA certificate rotation.
 However, please note that it incurs some additional overhead, so it
 should only be used for certificate rotation purposes."""
 
@@ -708,7 +700,7 @@ common_ssl_opts_schema_partial_chain.label:
 """Partial chain"""
 
 common_ssl_opts_verify_peer_ext_key_usage.desc:
-"""Verify Extended Key Usage in Peer's certificate
+"""Verify extended key usage in peer's certificate
 For additional peer certificate validation, the value defined here must present in the
 'Extended Key Usage' of peer certificate defined in
 [rfc5280](https://www.rfc-editor.org/rfc/rfc5280#section-4.2.1.12).
@@ -720,9 +712,9 @@ Allowed values are
 - "emailProtection"
 - "timeStamping"
 - "ocspSigning"
-- raw OID, for example: "OID:1.3.6.1.5.5.7.3.2"
+- raw OID, for example: "OID:1.3.6.1.5.5.7.3.2" means `id-pk 2` which is equivalent to `clientAuth`
 
-Comma-separated string is also supported for validating the subset of key usages.
+Comma-separated string is also supported for validating more than one key usages.
 
 For example, `"serverAuth,OID:1.3.6.1.5.5.7.3.2"`"""