diff --git a/README.md b/README.md
index 6aedb72..de5472c 100644
--- a/README.md
+++ b/README.md
@@ -1,81 +1,33 @@
-# Python teach and learn
+# 0_hello-world
 
-This is a repository to teach and learn Python.
+The main topic of this branch is to practice with GitHub.
 
-If you are a teacher, you can use all the exercises on this repo for your own purpose:
-teach some concept, exams, etc.
-
-As a student take a look to the explanations below.
-
-## Requirements
-
-* Python >= 3.6.
-* Git installed.
-* A GitHub account.
-
-## Repo structure
-
-On master you only have a few files, every exercise is inside his own branch.
-
-Every branch has a name with index + what we learn.
-For example the first branch is `0_hello-world`.
-Also, we have modifications to the main exercise on a branch, example: `0.1_hello-someone`.
-This modifications add more complexity to the main problem like is usually done on [code katas](https://en.wikipedia.org/wiki/Kata#Outside_martial_arts).
-
-> Katas starts with a simple problem and will be more complicated on every step
-
-## Step by step guide
-
-If you fork this repo, never update the original branches because you could have conflicts in the future. Instead of that, create new branches.
-
-### Step 0: Read it
-
-Yes, this should be your first step, read this README and, of course, we start with 0 not 1.
-If you do not know why, we will see it in the future, be patient.
-
-### Step 1: Fork
-
-You should fork this repo and then start working with it.
-How? We will see a step by step guide with git commands.
-
-If you use another tool like GitHub Desktop take a look to their docs.
-
-![fork button](docs/images/fork-btn.jpg)
-
-### Step 2: Setup the upstream
-
-This step is required to have the latests updates from the main repo in your forked one.
-
-When you setup this you will be able to:
-
-1. Update the master branch of your forked repo.
-2. Get any new branch created from the main repo.
-
-#### Add upstream remote origin
+## Create your own branch
 
 ```shell
-git remote add upstream git@github.com:mrroot5/python-teach-learn.git
+git checkout -b 0_hello-world_jhon-doe
 ```
 
-#### Update branches
+## Tips
 
-This could be done with the fetch button on GitHub:
+If you use **VSCode** I recommend you this extensions:
 
-![fetch button](docs/images/fetch-upstream-btn.jpg)
+> **Name:** markdownlint.
+**Description:** Markdown linting and style checking for Visual Studio Code.
+**VS Marketplace Link:** <https://marketplace.visualstudio.com/items?itemName=DavidAnson.vscode-markdownlint>
 
-Or with a git command:
+> **Name:** Python.
+**Description:** IntelliSense (Pylance), Linting, Debugging (multi-threaded, remote), Jupyter Notebooks, code formatting, refactoring, unit tests, and more.
+**VS Marketplace Link:** <https://marketplace.visualstudio.com/items?itemName=ms-python.python>
 
-```shell
-git pull upstream master
-```
+> **Name:** Pylance.
+**Description:** A performant, feature-rich language server for Python in VS Code.
+**VS Marketplace Link:** <https://marketplace.visualstudio.com/items?itemName=ms-python.vscode-pylance>
 
-Simply change master for the branch you want.
-On GitHub you must change to a new branch to have the option to fetch it.
+My favorite IDE is **PyCharm** but VSCode is a very good option too.
 
-#### Update list of branches
+## Start coding
 
-I do not know if GitHub have an option to do this so, this is the command:
+The objective of this exercise is to print a "hello world" on your terminal.
 
-```shell
-git fetch upstream
-```
+If you want to test your code to know if it works, use `python3 test.py`.
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..75b18a5
--- /dev/null
+++ b/main.py
@@ -0,0 +1,8 @@
+# Import modules if required
+
+# Create functions or classes to accomplish your task
+
+if __name__ == '__main__':
+    # Do here the main things to accomplish your task
+    # For example: call functions to process an input data
+    pass  # this could be removed
diff --git a/test.py b/test.py
new file mode 100644
index 0000000..ded0eca
--- /dev/null
+++ b/test.py
@@ -0,0 +1,23 @@
+import unittest
+
+from subprocess import Popen, PIPE
+from os import linesep
+
+
+class HelloWorldTestCase(unittest.TestCase):
+    def print_hello_world(self):
+        linesep_bytes = linesep.encode("utf8")
+        possible_values = [
+            b'hello world' + linesep_bytes,
+            b'hello world!' + linesep_bytes,
+            b'Hello World' + linesep_bytes,
+            b'Hello World!' + linesep_bytes
+        ]
+        cmd = "python3 main.py"
+        proc = Popen(cmd.split(' '), stdout=PIPE, stderr=PIPE)
+        (output, error) = proc.communicate()
+        self.assertIn(output, possible_values)
+
+
+if __name__ == '__main__':
+    unittest.main()