Add docstring template to README

Co-authored-by: Oskar Söderberg <os2012@tobii.com>

Author: m4reko

README.md

@@ -5,3 +5,103 @@ A Python wrapper for the Glasses3 API
 ## Dev Notes
 To get more DEBUG logs from asyncio, set the environment variable PYTHONDEVMODE:
 ```$env:PYTHONDEVMODE = 1```
+
+## Docstrings
+
+Docstrings is used to document code according to the following template:
+```python
+"""Module summary
+
+More in-depth information of the module. This docstring is placed at the top of the file, over the imports.
+"""
+import asyncio
+
+def my_simple_function(arg_1: str, arg_2: int):
+    """Summary of my_simple_function.
+
+    Takes in a name and number.
+
+    Returns a pair of glasses.
+
+    """
+    pass
+
+def my_long_function(arg_1: str, arg_2: int):
+    """Summary of my_simple_function.
+
+    ###### Args
+    - `arg_1`: The first argument.
+    - `arg_2`: The second argument.
+
+    ###### Returns
+    Something you want to use.
+
+    ###### Raises
+    - `MyError`: An error indicating some error.
+    """
+    pass
+
+
+class MyClass:
+    """Summary of MyClass, max 80 characters long.
+
+    Some more in-depth information about MyClass.
+    """
+
+    variable_1: str
+    """The first variable"""
+
+    variable_2: int
+    """The second variable"""
+
+    def __init__(arg_1: str):
+        """Initializes object, where arg_1 is your `variable_1`."""
+        self.variable_1 = arg_1
+
+    def my_simple_method(arg_1: str, arg_2: int):
+        """Summary of my_simple_method.
+
+        Takes in a name and number.
+
+        Returns something simple.
+        """
+        pass
+
+    def my_long_method(arg_1: str, arg_2: int):
+        """
+        Summary of my_long_method.
+
+        Some more in-depth information about my_long_method.
+
+        ###### Args
+        - `arg_1`: The first argument.
+        - `arg_2`: The second argument.
+
+        ###### Returns
+        Something you want to use.
+
+        ###### Raises
+        - `MyError`: An error indicating some error.
+        """
+        pass
+
+class MyAdvancedClass:
+    """Summary of MyAdvancedClass, max 80 characters long.
+
+    Some more in-depth information about MyClass.
+    """
+
+    def __init__(arg_1: str, arg_2: int):
+        """Initializes object.
+
+        ###### Args
+        - `arg_1`: The first argument.
+        - `arg_2`: The second argument.
+
+        ###### Raises
+        - `MyError`: An error indicating some error.
+
+        """
+        pass
+
+```