Add section with common issues to CONTRIBUTING.md
Add section with common issues to CONTRIBUTING.md

wisner23/serenata-de-amor,marcusrehm/serenata-de-amor,marcusrehm/serenata-de-amor,marcusrehm/serenata-de-amor,datasciencebr/serenata-de-amor,marcusrehm/serenata-de-amor,wisner23/serenata-de-amor,datasciencebr/serenata-de-amor