feat: added changelog file

CHANGELOG.md

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+# Changelog
+
+## Unreleased
+
+- API deployment with Docker and Nginx web server.
+
+## [1.0.0] - 2021-11-25
+
+### Added
+
+- Base CRUD operations on models
+- Displaying a background by API for each course
+- Authentication with API tokens
+- Email updating with verification
+- Updating the password of an authenticated user
+- Downloading materials from each lesson
+- Implemented simple role-based route access control
+- Course likes system
+- Access to lesson materials
+- Lesson ordering

README.md

@@ -1 +1,3 @@
-# ...
+# About API
+
+...