Add basic warnings to summarize on validate

[rak3rman]

The validate script only ensures that each JSON object of summarize data matches its schema. Add a new feature to the summarize tool that will throw "warnings" whenever validate script is run. These warnings can be grammatical in nature and should block Github Actions checks from passing.

A few ideas for what warnings can be thrown:

• Ensure that each object with bullets contains a certain percentage of quantitative metrics (i.e. 60% of bullets must contain a number)
• Ensure that naming conventions are standard for numbers (i.e. can only use "10+" instead of "10's")
• Check for basic grammatical errors (maybe add a dictionary of unique words that should NOT throw, i.e. "SpaceX")