chore(README): Add gitter badge
chore(README): Add gitter badge

andyperlitch/ngx-super-table,andyperlitch/ng2-super-table,andyperlitch/ngx-super-table,andyperlitch/ng2-super-table,andyperlitch/ng2-super-table,andyperlitch/ng2-super-table,andyperlitch/ngx-super-table