Add javadoc to clear up implicit behavior (#3991)

* add javadoc to clear up implicit behavior

* reword this paragraph

src/main/java/redis/clients/jedis/Jedis.java

@@ -193,6 +193,18 @@ public Jedis(final URI uri, final int connectionTimeout, final int soTimeout,
         .hostnameVerifier(hostnameVerifier).build());
   }
 
+  /**
+   * Create a new Jedis with the provided URI and JedisClientConfig object. Note that all fields
+   * that can be parsed from the URI will be used instead of the corresponding configuration values. This includes
+   * the following fields: user, password, database, protocol version, and whether to use SSL.
+   *
+   * For example, if the URI is "redis://user:password@localhost:6379/1", the user and password fields will be set
+   * to "user" and "password" respectively, the database field will be set to 1. Those fields will be ignored
+   * from the JedisClientConfig object.
+   *
+   * @param uri The URI to connect to
+   * @param config The JedisClientConfig object to use
+   */
   public Jedis(final URI uri, JedisClientConfig config) {
     if (!JedisURIHelper.isValid(uri)) {
       throw new InvalidURIException(String.format(

src/main/java/redis/clients/jedis/UnifiedJedis.java

@@ -82,6 +82,18 @@ public UnifiedJedis(final URI uri) {
         .ssl(JedisURIHelper.isRedisSSLScheme(uri)).build());
   }
 
+  /**
+   * Create a new UnifiedJedis with the provided URI and JedisClientConfig object. Note that all fields
+   * that can be parsed from the URI will be used instead of the corresponding configuration values. This includes
+   * the following fields: user, password, database, protocol version, and whether to use SSL.
+   *
+   * For example, if the URI is "redis://user:password@localhost:6379/1", the user and password fields will be set
+   * to "user" and "password" respectively, the database field will be set to 1. Those fields will be ignored
+   * from the JedisClientConfig object.
+   *
+   * @param uri The URI to connect to
+   * @param config The JedisClientConfig object to use
+   */
   public UnifiedJedis(final URI uri, JedisClientConfig config) {
     this(JedisURIHelper.getHostAndPort(uri), DefaultJedisClientConfig.builder()
         .connectionTimeoutMillis(config.getConnectionTimeoutMillis())