Update connect to Memgraph (#297)

* Update connect to Memgraph

* Update link to installation guide

* Remove prerequisite

docs/index.md

@@ -18,7 +18,70 @@ source](installation.md#source). If you are using [Conda](https://docs.conda.io/
 
 ### 2. Connect to Memgraph
 
-Check the [Python quick start guide](https://memgraph.com/docs) to learn how to connect to Memgraph using GQLAlchemy.
+**Prerequisites**
+
+To follow this guide, you will need:
+
+- A **running Memgraph instance**. If you need to set up Memgraph, take a look
+  at the [Installation guide](https://memgraph.com/docs/getting-started/install-memgraph).
+
+**Basic setup**
+
+We'll be using a **Python program** to demonstrate how to connect to a running
+Memgraph database instance.<br />
+
+Let's jump in and connect a simple program to Memgraph.
+
+**1.** Create a new directory for your program, for example, `/memgraph_python`
+and position yourself in it.<br /> 
+
+**2.** Create a new Python script and name it `program.py` . Add the following
+code to it:
+
+```python
+from gqlalchemy import Memgraph
+
+# Make a connection to the database
+memgraph = Memgraph(host='127.0.0.1', port=7687)
+
+# Delete all nodes and relationships
+query = "MATCH (n) DETACH DELETE n"
+
+# Execute the query
+memgraph.execute(query)
+
+# Create a node with the label FirstNode and message property with the value "Hello, World!"
+query = """CREATE (n:FirstNode)
+           SET n.message = '{message}'
+           RETURN 'Node '  + id(n) + ': ' + n.message AS result""".format(message="Hello, World!")
+
+# Execute the query
+results = memgraph.execute_and_fetch(query)
+
+# Print the first member
+print(list(results)[0]['result'])
+```
+
+!!! note 
+    If the program fails to connect to a Memgraph instance that was started with Docker, you may need to use a different IP address (not the default `localhost` / `127.0.0.1` ) to connect to the instance. You can find the **`CONTAINER_ID`** with `docker ps` and use it in the following command to retrieve the address:
+    ```
+    docker inspect -f '{{range.NetworkSettings.Networks}}{{.IPAddress}}{{end}}' CONTAINER_ID
+    ```
+
+
+**3.** Now, you can run the application with the following command:
+
+```
+python ./program.py
+```
+
+You should see an output similar to the following:
+
+```
+Node 1: Hello, World!
+```
+
+
 
 ### 3. Learn how to use GQLAlchemy