docs: add information about commit in Contributing

Author: htmlprogrammist

CONTRIBUTING.md

@@ -31,3 +31,57 @@ Here you find all which using in project:
 - // MARK: - Models
 
 If you can't find valid, add new to codestyle agreements please. Other can be use if class is large and need struct it even without adding to codestyle agreements.
+
+## Conventional Commits
+
+- Commit names should be according to the [guideline](https://github.com/htmlprogrammist/EmojiPicker/blob/main/CONTRIBUTING.md#guideline)
+- The present tense should be used ("add function", not "added function")
+- The imperative mood should be used ("move the cursor to...", not "move the cursor to...")
+
+### Guideline
+
+- `init:` - used to start a project. Examples:
+    
+    ```
+    init: start youtube-task
+    init: start mentor-dashboard task
+    ```
+    
+- `feat:` - this is the implemented new functionality from the terms of reference (added zoom support, added footer, added a product card). Examples:
+    
+    ```
+    feat: add basic page layout
+    feat: implement search box 
+    feat: implement request to youtube API
+    feat: implement swipe for horizontal list
+    feat: add additional navigation button
+    feat: add banner
+    feat: add social links
+    feat: add physical security section
+    feat: add real social icons
+    ```
+    
+- `fix:` - fixed a bug in previously implemented functionality. Examples:
+    
+    ```
+    fix: implement correct loading data from youtube
+    fix: change layout for video items to fix bugs
+    fix: relayout header for firefox
+    fix: adjust social links for mobile
+    ```
+    
+- `refactor:` - I didn't add any new functionality/didn't change the behavior. I put the files in other places, deleted them, added them. Changed the formatting of the code (white-space, formatting, missing semi-columns, etc). Improved the algorithm, without changing the functionality. Examples:
+    
+    ```
+    refactor: change structure of the project
+    refactor: rename vars for better readability
+    refactor: apply eslint
+    refactor: apply prettier
+    ```
+    
+- `docs:` - used when working with the documentation/README of the project. Examples:
+    
+    ```
+    docs: update readme with additional information
+    docs: update description of run() method
+    ```