Project_4: Gensim 4.0 Removed Summarization

[davidherring]

Gensim 4.0 no longer includes summarization: https://github.com/RaRe-Technologies/gensim/wiki/Migrating-from-Gensim-3.x-to-4#12-removed-gensimsummarization

[rlvaugh]

Thank you for pointing this out. Looks like you can still install and use an older version that includes Summarization: https://pypi.org/project/gensim/3.8.3/.