Editing and writing a README file (#43)

* Changing 'Modules' to 'Stack'

* Adding installation & getting started guide

* Update Docker

* Add redis logo image

* Add Search Example

* Fixes after review

* Add words to wordlist

Author: shacharPash

.github/wordlist.txt

@@ -8,4 +8,7 @@ OSS
 Json
 json
 TimeSeries
-NuGet
+NuGet
+cli
+dotnet
+HSET

README.md

@@ -9,7 +9,7 @@
 
 ## Note
 
-This project builds on [StackExchange.Redis](https://github.com/StackExchange/StackExchange.Redis), and seeks to bring native support for Redis Modules to the C# ecosystem.
+This project builds on [StackExchange.Redis](https://github.com/StackExchange/StackExchange.Redis), and seeks to bring native support for Redis Stack commands to the C# ecosystem.
 
 ## API
 
@@ -18,15 +18,35 @@ The complete documentation for Redis  module commands can be found at the [Redis
 ### Redis OSS commands
 You can use Redis OSS commands in the same way as you use them in [StackExchange.Redis](https://github.com/StackExchange/StackExchange.Redis).
 
-### Modules Commands
+### Stack commands
 Each module has a command class with its own commands.
-The supported modules are: [Search](https://redis.io/commands/?group=search), [Json](https://redis.io/commands/?group=json), [Graph](https://redis.io/commands/?group=graph), [TimeSeries](https://redis.io/commands/?group=timeseries), [Bloom Filter](https://redis.io/commands/?group=bf), [Cuckoo Filter](https://redis.io/commands/?group=cf), [T-Digest](https://redis.io/commands/?group=tdigest), [Count-min Sketch](https://redis.io/commands/?group=cms) and [Top-K](https://redis.io/commands/?group=topk).
+The supported modules are [Search](https://redis.io/commands/?group=search), [JSON](https://redis.io/commands/?group=json), [Graph](https://redis.io/commands/?group=graph), [TimeSeries](https://redis.io/commands/?group=timeseries), [Bloom Filter](https://redis.io/commands/?group=bf), [Cuckoo Filter](https://redis.io/commands/?group=cf), [T-Digest](https://redis.io/commands/?group=tdigest), [Count-min Sketch](https://redis.io/commands/?group=cms), and [Top-K](https://redis.io/commands/?group=topk).
 
 # Usage
 
-First, you need to connect to Redis, exactly the same way you do it in [StackExchange.Redis](https://github.com/StackExchange/StackExchange.Redis):
+## 💻 Installation
+
+Using the dotnet cli, run:
+
+```text
+dotnet add package NRedisStack
+```
+
+## 🏁 Getting started
+
+### Starting Redis
+
+Before writing any code, you'll need a Redis instance with the appropriate Redis modules. The quickest way to get this is with Docker:
+
+```sh
+docker run -p 6379:6379 --name redis-stack redis/redis-stack:latest
+```
+
+This launches [Redis Stack](https://redis.io/docs/stack/), an extension of Redis that adds modern data structures to 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 StackExchange.Redis;
+using NRedisStack;
 ...
 ConnectionMultiplexer redis = ConnectionMultiplexer.Connect("localhost");
 ```
@@ -43,7 +63,8 @@ IJsonCommands json = db.JSON();
 ITimeSeriesCommands ts = db.TS();
 ```
 Then, that variable will allow you to call all the commands of that module.
-## Basic Example
+## Examples
+### Set JSON object to Redis
 Set a json object to Redis:
 ```csharp
 ConnectionMultiplexer redis = ConnectionMultiplexer.Connect("localhost");
@@ -53,13 +74,54 @@ IJsonCommands json = db.JSON();
 var key = "myKey";
 json.Set(key, "$", new Person() { Age = 35, Name = "Alice" });
 ```
+### Index and search
+We will see an example that shows how you can create an index, add a document to it and search it using NRedisStack.
+
+Setup:
+```csharp
+using NRedisStack;
+...
+IDatabase db = redisFixture.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)
+                                         .Prefix("doc:"),
+                     new Schema().AddTextField("title", 5.0)
+                                 .AddTextField("body")
+                                 .AddTextField("url"));
+```
+
+After you create the index, any new hash documents with the doc: prefix are automatically indexed upon creation.
+
 
+To create a new hash document and add it to the index, use the HSET command:
+```csharp
+// HSET doc:1 title "hello world" body "lorem ipsum" url "http://redis.io"
+db.HashSet("doc:1", new HashEntry[] { new("title", "hello world"),
+                                      new("body", "lorem ipsum"),
+                                      new("url", "http://redis.io") });
+```
+Search the index for documents that contain "hello world":
+```csharp
+// FT.SEARCH myIndex "hello world" LIMIT 0 10
+ft.Search("myIndex", new Query("hello world").Limit(0, 10));
+```
+Drop the index:
+```csharp
+// FT.DROPINDEX myIndex
+ft.DropIndex("myIndex");
+```
 ------
 
 ### Author
 
 NRedisStack is developed and maintained by [Redis Inc](https://redis.com). It can be found [here](
 https://github.com/redis/NRedisStack), or downloaded from [NuGet](https://www.nuget.org/packages/NRedisStack).
 
-[![Redis](./docs/logo-redis.png)](https://www.redis.com)
+---
 
+[![Redis](./docs/logo-redis.png)](https://www.redis.com)