clean up scripts.en.yml, add description_short
clean up scripts.en.yml, add description_short

rvarshney/code-dot-org,rvarshney/code-dot-org,ty-po/code-dot-org,rvarshney/code-dot-org,rvarshney/code-dot-org,rvarshney/code-dot-org,dillia23/code-dot-org,ty-po/code-dot-org,pickettd/code-dot-org,pickettd/code-dot-org,dillia23/code-dot-org,pickettd/code-dot-org,dillia23/code-dot-org,pickettd/code-dot-org,pickettd/code-dot-org,dillia23/code-dot-org,rvarshney/code-dot-org,ty-po/code-dot-org,pickettd/code-dot-org,dillia23/code-dot-org,pickettd/code-dot-org,ty-po/code-dot-org,ty-po/code-dot-org,dillia23/code-dot-org,pickettd/code-dot-org,ty-po/code-dot-org,rvarshney/code-dot-org,dillia23/code-dot-org,rvarshney/code-dot-org,ty-po/code-dot-org,dillia23/code-dot-org,ty-po/code-dot-org