update information about model sizes used in the demo

generation/intro.md

@@ -1,4 +1,4 @@
-In this section you can prompt the following models to generate Python code: CodeParrot 1.5B, InCoder 6.7B and CodeGen 6.1B. 
+In this section you can prompt the following models to generate Python code: CodeParrot 1.5B, InCoder 1B and CodeGen 2B. 
 
-* For CodeGen, there’s a larger [model](https://huggingface.co/Salesforce/codegen-16B-mono) available on the 🤗 Hub with 16.1B parameters, but we use the 6.1B version to have models of comparable size in this demo.
+* For CodeGen, there are a larger [models](https://huggingface.co/Salesforce/codegen-16B-mono) available on the 🤗 Hub with 6.1 B and 16.1B parameters, but we use the 2B version to have models of comparable size in this demo. For InCoder too, there is a larger [model](https://huggingface.co/spaces/facebook/incoder-6B) with 6B parameters.
 * For InCoder, you can also try the original [demo](https://huggingface.co/spaces/facebook/incoder-demo), which has more tasks and examples.