[DOC] RediSearch usage with FTCreateParams and FTSearchParams classes (#3934)

* Update redisearch.md

* Update redisjson.md

* fix spell check

Author: sazzad16

.github/wordlist.txt

@@ -20,6 +20,8 @@ EVAL
 EVALSHA
 Failback
 Failover
+FTCreateParams
+FTSearchParams
 GSON
 GenericObjectPool
 GenericObjectPoolConfig

docs/redisearch.md

@@ -1,6 +1,6 @@
 # RediSearch Jedis Quick Start
 
-To use RediSearch features with Jedis, you'll need to use and implementation of RediSearchCommands.
+To use RediSearch features with Jedis, you'll need to use an implementation of RediSearchCommands.
 
 ## Creating the RediSearch client
 
@@ -22,6 +22,8 @@ JedisCluster client = new JedisCluster(nodes);
 
 ## Indexing and querying
 
+### Indexing
+
 Defining a schema for an index and creating it:
 
 ```java
@@ -37,6 +39,23 @@ IndexDefinition def = new IndexDefinition()
 client.ftCreate("item-index", IndexOptions.defaultOptions().setDefinition(def), sc);
 ```
 
+Alternatively, we can create the same index using FTCreateParams:
+
+```java
+client.ftCreate("item-index",
+
+        FTCreateParams.createParams()
+                .prefix("item:", "product:")
+                .filter("@price>100"),
+
+        TextField.of("title").weight(5.0),
+        TextField.of("body"),
+        NumericField.of("price")
+);
+```
+
+### Inserting
+
 Adding documents to the index:
 
 ```java
@@ -49,18 +68,37 @@ fields.put("price", 1337);
 client.hset("item:hw", RediSearchUtil.toStringMap(fields));
 ```
 
+Another way to insert documents:
+
+```java
+client.hsetObject("item:hw", fields);
+```
+
+### Querying
+
 Searching the index:
 
 ```java
-// creating a complex query
 Query q = new Query("hello world")
         .addFilter(new Query.NumericFilter("price", 0, 1000))
         .limit(0, 5);
 
-// actual search
 SearchResult sr = client.ftSearch("item-index", q);
+```
+
+Alternative searching using FTSearchParams:
 
-// aggregation query
+```java
+SearchResult sr = client.ftSearch("item-index",
+        "hello world",
+        FTSearchParams.searchParams()
+                .filter("price", 0, 1000)
+                .limit(0, 5));
+```
+
+Aggregation query:
+
+```java
 AggregationBuilder ab = new AggregationBuilder("hello")
         .apply("@price/1000", "k")
         .groupBy("@state", Reducers.avg("@k").as("avgprice"))

docs/redisjson.md

@@ -81,21 +81,37 @@ If we want to be able to query this JSON, we'll need to create an index. Let's c
 3. Then we actually create the index, called "student-index", by calling `ftCreate()`.
 
 ```java
-Schema schema = new Schema().addTextField("$.firstName", 1.0).addTextField("$" + ".lastName", 1.0);
+Schema schema = new Schema().addTextField("$.firstName", 1.0).addTextField("$.lastName", 1.0);
 
 IndexDefinition rule = new IndexDefinition(IndexDefinition.Type.JSON)
         .setPrefixes(new String[]{"student:"});
 
 client.ftCreate("student-index", IndexOptions.defaultOptions().setDefinition(rule), schema);
 ```
 
+Alternatively creating the same index using FTCreateParams: 
+
+```java
+client.ftCreate("student-index",
+        FTCreateParams.createParams().on(IndexDataType.JSON).prefix("student:"),
+        TextField.of("$.firstName"), TextField.of("$.lastName"));
+```
+
 With an index now defined, we can query our JSON. Let's find all students whose name begins with "maya":
 
 ```java
-Query q = new Query("@\\$\\" + ".firstName:maya*");
+Query q = new Query("@\\$\\.firstName:maya*");
 SearchResult mayaSearch = client.ftSearch("student-index", q);
 ```
 
+Same query can be done using FTSearchParams:
+
+```java
+SearchResult mayaSearch = client.ftSearch("student-index",
+        "@\\$\\.firstName:maya*",
+        FTSearchParams.searchParams());
+```
+
 We can then iterate over our search results:
 
 ```java