site/plugins.md: Metadata Templates: change English phrasing
site/plugins.md: Metadata Templates: change English phrasing

weaveworks/scope,kinvolk/scope,weaveworks/scope,kinvolk/scope,kinvolk/scope,alban/scope,weaveworks/scope,weaveworks/scope,weaveworks/scope,alban/scope,kinvolk/scope,alban/scope,weaveworks/scope,alban/scope,alban/scope,alban/scope,kinvolk/scope,kinvolk/scope