Update README.md (#27)

README.md

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-# sparkcql
-Evaluation of Clinical Quality Language using Spark
+# cql-transpiler
 
-**Under Development**
+The CQL Transpiler is a tool for translating [Clinical Quality Language (CQL)](https://cql.hl7.org/) to its SQL equivalence. The transpiler itself doesn't actually produce SQL but instead translates each ELM operator into [DBT](https://getdbt.com/)/[Jinja](https://jinja.palletsprojects.com/en/3.1.x/) *macro operator* equivalents. These *macro operators* are translated to a given SQL dialect through a separate DBT *transpiler target* package imported into the implementor's solution. Spark SQL is the first planned *transpiler target* but the development and use of other targets is possible.
+
+This project is still very much in its infancy but is hoped to be used for VA's 2024 Joint Commission submission.