update README to alpha order

[bbrewington]

I've been doing this manually in VS Code and confirming manually w/ Google Sheets "Sort" (link) - looks like contributors aren't clear the items are supposed to be alphabetized

Would it make sense to build in an automated checker or fixer? (outside scope of this PR)

[bbrewington]

here's a key example (intentionally using commit prior to my previous commit, since I just fixed line length in mine...but maybe need to check for that as well):

professional-services/README.md

Lines 500 to 504 in d5f1811

	* [XSD to BigQuery Schema Generator](tools/xsd-to-bigquery-schema) - A command
	line tool for converting an XSD schema representing deeply nested and
	repeated XML content into a BigQuery compatible table schema represented in
	JSON.
	* [Numeric Family Recommender - Oracle](tools/numeric-family-recommender-oracle) - The Numeric Family Recommender is a database script that recommends the best numeric data type for the NUMBER data type when migrating from legacy databases like Oracle to Google Cloud platforms like BigQuery, AlloyDB, Cloud SQL for PostgreSQL, and Google Cloud Storage.

[agold-rh]

@bbrewington I like the idea of the automated validation. If you look at the open issues, there are a number of "issues" that are simply suggestions for improved automated validation. With a little luck, we'll get some time to work on the simpler action items.

I'm also showing conflicts in the README.md file. If you can resolve them, I'll get this PR merged asap.

[agold-rh]

Closed as stale. Please re-open if I'm wrong.