Merge pull request #21 from andrewyng/update-readme-with-researcher-context

update readme to call out the researcher focus

Author: ksolo

README.md

@@ -4,6 +4,11 @@
 
 Simple, unified interface to multiple Generative AI providers.
 
+`aimodels` is an tool designed for researchers who need to evaluate and compare the responses of
+multiple LLMs through a standardized interface. Based on the OpenAI interface standard, `aimodels`
+makes it easy to interact with the most popular LLMs and compare the results of their chat based
+functionality, with support for more interfaces coming in the near future.
+
 ## Installation
 
 ```shell