update readme

README.md

@@ -19,13 +19,19 @@ Add a brief description of the library
 
 ## Noir version compatibility
 
-TODO: Update Noir version numbers tested compatible with
-
-This library is tested to work as of Noir version 1.0.0-beta.x.
+This library is tested to work as of Noir version 0.36.0 & 1.0.0-beta.x.
 
 ## Benchmarks
 
-TODO
+Benchmarks are ignored by `git` and checked on pull-request. As such, benchmarks may be generated
+with the following command.
+
+```bash
+# execute the following
+./scripts/build-gates-report.sh
+```
+
+The benchmark will be generated at `./gates_report.json`.
 
 ## Installation