Remove make references in CONTRIBUTING file
Remove make references in CONTRIBUTING file

blackducksoftware/backgrid-paginator,qferr/backgrid-paginator,goodwall/backgrid-paginator,backgrid/backgrid-paginator,aboieriu/backgrid-paginator,qferr/backgrid-paginator,ludoo0d0a/backgrid-paginator-bootstrap,ludoo0d0a/backgrid-paginator-bootstrap,blackducksoftware/backgrid-paginator,backgrid/backgrid-paginator,wyuenho/backgrid-paginator,aboieriu/backgrid-paginator,wyuenho/backgrid-paginator,goodwall/backgrid-paginator