build: Release v1.0.0

closes #1 #3

CHANGELOG.md

+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [1.0.0] - 2023-05-06
+
+First stable version of Vigenere-API.
+This update provides an OpenAPI interface to use Caesar algorithm.
+You can cipher and decipher content.
+
+### Added features:
+
+- Caesar algorithm [#1](https://etulab.univ-amu.fr/d19006523/vigenere-api/-/issues/1).
+    - Cipher method at the address: /api/v1/caesar/decipher
+    - Decipher method at the address: /api/v1/caesar/decipher
+  
+    You need to use the POST method to send the JSON content to cipher or decipher.<br>
+    The JSON format is:
+    "content": str
+    "key": int | str(one character)
+- Starter of API.
+    To start the API, install the package and run the command:
+    ```shell
+    python -m vigenere-api
+    ```

pyproject.toml

 [tool.poetry]
 name = "Vigenere-API"
-version = "0.0.1"
+version = "1.0.0"
 description = """\
 The project provides an API to use cipher, decipher and decrypt method with the Vigenere algorithm.\
 The Caesar algorithm is provided for the cipher method and decipher method.\