Accessibility A11Y

Key Point

💡 Improve the accessibility as documented by the A11Y project.

Alternative text

Add an alternative text for images.

👍 Correct code for this rule:

![snowflake icon](https://raw.githubusercontent.com/arcticicestudio/styleguide-markdown/develop/src/assets/snowflake.png)

👎 Incorrect code for this rule:

![][snowflake]

[snowflake]: https://raw.githubusercontent.com/arcticicestudio/styleguide-markdown/develop/src/assets/snowflake.png