add week3 github homework

homework/github_week3/README.md

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+# Week 3 Homework: Git & GitHub
+
+Welcome to week 3 of Linux Club! This week, your homework is to be done in-class, in teams of 3-4 people.
+
+## Task
+
+We have prepared a template of a tiny Python project in this directory, in the file `fibonacci.py`. Your task here is to take a number as input from the user and print the corresponding number of Fibonacci terms. The catch is, you have to use the [nth term formula](https://r-knott.surrey.ac.uk/Fibonacci/fibFormula.html). This formula is to be calculated using the functions defined in the Python file.
+
+## Steps
+
+The instuctions for completing the assignment are as follows:
+
+1. Fork the [Linux Club repo](https://github.com/ucu-computer-science/UCU_Linux_Club) to your GitHub profile.
+2. Add collaborators to the repo on GitHub (split into teams of 3-4 people)
+2. Clone the repo to your machine
+
+```{bash}
+git clone <link to your fork>
+```
+3. Each person should create their own branch to make changes
+
+```{bash}
+git branch <name of branch>; git checkout <name of branch>
+```
+4. Split the tasks up between the members of your team
+4. Each person navigates to the homework directory and does their task
+5. Each person pushes their changes to their branch in the repo
+
+```{bash}
+git add .
+```
+
+```{bash}
+git commit -m "commit name"
+```
+
+```{bash}
+git push origin <name of branch>
+```
+
+6. Pull the changes made by others from GitHub
+
+```{bash}
+git pull origin master
+```
+
+6. Checkout to main branch and merge your changes
+
+```{bash}
+git checkout master
+```
+
+```{bash}
+git merge <name of branch>
+```
+
+7. Push the master branch to GitHub
+
+
+```{bash}
+git push origin master
+```
+
+8. Create a pull request to the main repo.

homework/github_week3/fibonacci.py

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+"""
+This is a Python script that takes a number as input from the
+user and returns the corresponding number of Fibonacci terms.
+It uses the formula for the nth term of the Fibonacci sequence
+and functionally decomposes the calculations.
+Fill in all the missing code in the functions and in main
+"""
+import typing
+
+def get_input() -> int:
+    """Gets input from the user and returns it as an integer"""
+    pass
+
+
+def fibonacci_list(n: int) -> typing.List[int]:
+    """Returns a list of the first n Fibonacci numbers"""
+    pass
+
+
+def fibonacci_single(n: int) -> int:
+    """Returns the nth Fibonacci number"""
+    pass
+
+
+def golden_ratio(n: int) -> float:
+    """Returns the golden ratio, used in calculations"""
+    pass
+
+
+def power(num: int, n: int) -> int:
+    """Raises num to the nth power"""
+    pass
+
+
+def sqrt(num: int) -> float:
+    """Returns the square root of num"""
+    pass
+
+
+def main():
+    """Main function"""
+    pass
+
+
+if __name__ == "__main__":
+    main()