Adding comments to methods

Author: borkweb

.editorconfig

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+# https://editorconfig.org/
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+insert_final_newline = true
+trim_trailing_whitespace = true
+end_of_line = lf
+charset = utf-8
+
+[*.py]
+max_line_length = 88
+ensure_newline_before_comments = true
+include_trailing_comma = true
+use_parentheses = true
+
+# Use 2 spaces for the HTML files
+[*.html]
+indent_size = 2
+
+# The JSON files contain newlines inconsistently
+[*.json]
+indent_size = 2
+insert_final_newline = false
+
+# Minified JavaScript files shouldn't be changed
+[**.min.js]
+indent_style = unset
+insert_final_newline = false
+
+# Makefiles always use tabs for indentation
+[Makefile]
+indent_style = tab
+
+# Batch files use tabs for indentation
+[*.bat]
+indent_style = tab
+
+[docs/**.txt]
+max_line_length = 88
+
+[*.yml]
+indent_size = 2

README.md

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+# ArrayUtils (Arr)
+
+[![Tests](https://github.com/borkweb/python-arrayutils/workflows/Tests/badge.svg)](https://github.com/borkweb/python-arrayutils/actions?query=branch%3Amain)
+
+A library for array manipulations.
+
+## Table of contents
+
+* [Installation](#installation)
+* [Usage](#usage)
+
+## Installation
+
+Install arrayutils via pip:
+
+```bash
+pip install arrayutils
+```
+
+## Usage
+
+Here are descriptions and usage examples for each method in the `Arr` class that you can get by:
+
+```python
+from arrayutils import Arr
+```
+