Update index and journals to include Berkeley.
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# On branch gh-pages
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#	modified:   index.html
#	modified:   journals.html
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#	modified:   _drafts/cambridge.md
#	modified:   _drafts/columbia.md
#	deleted:    _drafts/plain-bob-minor.md
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#	_drafts/bells-and-bells.md
#	_drafts/nlp.md
#	_drafts/poems.md