chore(schema): reformat schema fields descriptions

apps/emqx/src/emqx_schema.erl

@@ -88,23 +88,26 @@ roots(high) ->
       }
     , {"zones",
        sc(map("name", ref("zone")),
-          #{ desc => "A zone is a set of configs grouped by the zone <code>name</code>. <br>"
-                     "For flexible configuration mapping, the <code>name</code> "
-                     "can be set to a listener's <code>zone</code> config.<br>"
-                     "NOTE: A builtin zone named <code>default</code> is auto created "
-                     "and can not be deleted."
+          #{ desc =>
+"""A zone is a set of configs grouped by the zone <code>name</code>.<br>
+For flexible configuration mapping, the <code>name</code>
+can be set to a listener's <code>zone</code> config.<br>
+NOTE: A builtin zone named <code>default</code> is auto created
+and can not be deleted."""
            })}
     , {"mqtt",
        sc(ref("mqtt"),
-         #{ desc => "Global MQTT configuration.<br>"
-                    "The configs here work as default values which can be overriden "
-                    "in <code>zone</code> configs"
+         #{ desc =>
+"""Global MQTT configuration.<br>
+The configs here work as default values which can be overriden
+in <code>zone</code> configs"""
           })}
     , {"authentication",
       sc(hoconsc:lazy(hoconsc:array(map())),
-         #{ desc => "Default authentication configs for all MQTT listeners.<br>"
-                    "For per-listener overrides see <code>authentication</code> "
-                    "in listener configs"
+         #{ desc =>
+"""Default authentication configs for all MQTT listeners.<br>
+For per-listener overrides see <code>authentication</code>
+in listener configs"""
           })}
     , {"authorization",
        sc(ref("authorization"),
@@ -967,7 +970,7 @@ keyfile is password-protected."""
 """All TLS/DTLS versions to be supported.<br>
 NOTE: PSK ciphers are suppresed by 'tlsv1.3' version config<br>
 In case PSK cipher suites are intended, make sure to configured
-<code>['tlsv1.2', 'tlsv1.1']</code> here<br>.
+<code>['tlsv1.2', 'tlsv1.1']</code> here.
 """
            })
       }