Fix code examples in README (#86)

* Fix code examples in README

- Specify all required dependencies
- Add missing db initialization line
- Use anonymous type to make JSON example runnable

* Use consistent style for examples in README

* Fix FT.CREATE example

---------

Co-authored-by: shacharPash <[email protected]>

Author: uglide

README.md

@@ -49,8 +49,11 @@ This launches [Redis Stack](https://redis.io/docs/stack/), an extension of Redis
 Now, you need to connect to Redis, exactly the same way you do it in [StackExchange.Redis](https://github.com/StackExchange/StackExchange.Redis):
 ```csharp
 using NRedisStack;
-...
+using NRedisStack.RedisStackCommands;
+using StackExchange.Redis;
+//...
 ConnectionMultiplexer redis = ConnectionMultiplexer.Connect("localhost");
+IDatabase db = redis.GetDatabase();
 ```
 Now you can create a variable from any type of module in the following way:
 ```csharp
@@ -78,7 +81,7 @@ IDatabase db = redis.GetDatabase();
 
 IJsonCommands json = db.JSON();
 var key = "myKey";
-json.Set(key, "$", new Person() { Age = 35, Name = "Alice" });
+json.Set(key, "$", new { Age = 35, Name = "Alice" });
 ```
 
 ### Index and search
@@ -87,17 +90,20 @@ Now, to execute a search  for objects, we need to index them on the server, and
 Setup:
 
 ```csharp
-using NRedisStack;
-...
-IDatabase db = redisFixture.Redis.GetDatabase();
+using NRedisStack.Search;
+using NRedisStack.Search.Literals.Enums;
+//...
+ConnectionMultiplexer redis = ConnectionMultiplexer.Connect("localhost");
+IDatabase db = redis.GetDatabase();
+
 ISearchCommands ft = db.FT();
 IJsonCommands json = db.JSON();
 ```
 
 Create an index with fields and weights:
 ```csharp
 // FT.CREATE myIdx ON HASH PREFIX 1 doc: SCHEMA title TEXT WEIGHT 5.0 body TEXT url TEXT
-ft.Create("myIndex", new FTCreateParams().On(IndexDataType.Hash)
+ft.Create("myIndex", new FTCreateParams().On(IndexDataType.HASH)
                                          .Prefix("doc:"),
                      new Schema().AddTextField("title", 5.0)
                                  .AddTextField("body")