Fix missing word in style guide for surrounding constructs (#2222)

Author: idzikovsky

book/style_guide.md

@@ -129,7 +129,7 @@ Rules:
 4. lists:
    1. **It's recommended to** put each list item on separate line.
 5. surrounding constructs:
-   1. **It's recommended to** put one `\n` before opening square `[`, curly brace `{`, or parenthesis `(` if preceding symbol is not the and applying this rule produce line with a singular parenthesis.
+   1. **It's recommended to** put one `\n` before opening square `[`, curly brace `{`, or parenthesis `(` if preceding symbol is not the same and applying this rule produce line with a singular parenthesis.
    2. **It's recommended to** put one `\n` after closing square `]`, curly brace `}`, or parenthesis `)` if following symbol is not the same and applying this rule produce line with a singular parenthesis.
 
 Correct: