Apply new format to snippets and template

snippets/arrayToCSV.md

@@ -5,9 +5,9 @@ tags: array,string,intermediate
 
 Converts a 2D array to a comma-separated values (CSV) string.
 
-Use `Array.prototype.map()` and `Array.prototype.join(delimiter)` to combine individual 1D arrays (rows) into strings.
-Use `Array.prototype.join('\n')` to combine all rows into a CSV string, separating each row with a newline.
-Omit the second argument, `delimiter`, to use a default delimiter of `,`.
+- Use `Array.prototype.map()` and `Array.prototype.join(delimiter)` to combine individual 1D arrays (rows) into strings.
+- Use `Array.prototype.join('\n')` to combine all rows into a CSV string, separating each row with a newline.
+- Omit the second argument, `delimiter`, to use a default delimiter of `,`.
 
 ```js
 const arrayToCSV = (arr, delimiter = ',') =>