fix matchRows example - Wrap example with required tags (div and code) - Remove extra space
fix matchRows example
- Wrap example with required tags (div and code)
- Remove extra space

bomoko/p5.js,processing/p5.js,mlarghydracept/p5.js,sakshamsaxena/p5.js,limzykenneth/p5.js,limzykenneth/p5.js,joecridge/p5.js,joecridge/p5.js,processing/p5.js,dhowe/p5.js,sakshamsaxena/p5.js,bomoko/p5.js,kennethdmiller3/p5.js,mlarghydracept/p5.js,nucliweb/p5.js,nucliweb/p5.js,dhowe/p5.js,kennethdmiller3/p5.js