Add a link to twilio blog

[wing328]

Add a link to twilio blog

PR checklist

• Read the contribution guidelines.
• Pull Request title clearly describes the work in the pull request and Pull Request description provides details about how to validate the work. Missing information here may result in delayed response from the community.
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  ./mvnw clean package 
  ./bin/generate-samples.sh
  ./bin/utils/export_docs_generators.sh
  

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[OneCricketeer]

I know 2020 was long, but I think there is a typo in this PR

[wing328]

@OneCricketeer thanks for pointing it out. I've fixed it in the latest master.