update readme (in-toto#26)

README.md

@@ -1,30 +1,3 @@
-# In-toto Go implementation
-[![build](https://github.com/in-toto/in-toto-golang/workflows/build/badge.svg)](https://github.com/in-toto/in-toto-golang/actions?query=workflow%3Abuild) [![Coverage Status](https://coveralls.io/repos/github/in-toto/in-toto-golang/badge.svg)](https://coveralls.io/github/in-toto/in-toto-golang) [![PkgGoDev](https://pkg.go.dev/badge/github.com/in-toto/in-toto-golang)](https://pkg.go.dev/github.com/in-toto/in-toto-golang) [![Go Report Card](https://goreportcard.com/badge/github.com/in-toto/in-toto-golang)](https://goreportcard.com/report/github.com/in-toto/in-toto-golang)
+#in-toto spire POC
 
-
-Go implementation of the 
-[in-toto Python reference implementation](https://github.com/in-toto/in-toto).
-
-## Docs
-
-To read the documentation along with some examples, run:
-
-```bash
-godoc -http :8080
-```
-
-and navigate to `localhost:8080/pkg/github.com/in-toto/in-toto-golang/in_toto/`
-
-
-## Not (yet) supported
-
-This golang implementation was focused on verification on admission controllers
-and kubectl plugins. As such, it focused on providing a strong, auditable set
-of core functions rather than a broad and (possibly) unstable feature set. In
-other words, we believe that the current feature set is stable enough for
-production use.
-
-If any of these features are necessary for your use case please let us know and
-we will try to provide them as soon as possible!
-
-* [GPG keys](https://github.com/in-toto/in-toto-golang/issues/26)
+This POC is designed to demonstrate the the integraion of SPIRE PKI with in-toto artifact sigining.