Add project logo

Signed-off-by: James Munnelly <james@munnelly.eu>

README.md

@@ -1,3 +1,11 @@
+<p align="center"><img src="./logo/logo.png" width="250x" /></p>
+<p align="center"><a href="https://prow.build-infra.jetstack.net/?job=ci-cert-manager-bazel">
+<!-- prow build badge, godoc, and go report card-->
+<img alt="Build Status" src="https://prow.build-infra.jetstack.net/badge.svg?jobs=ci-cert-manager-bazel">
+</a>
+<a href="https://godoc.org/github.com/jetstack/cert-manager"><img src="https://godoc.org/github.com/jetstack/cert-manager?status.svg"></a>
+<a href="https://goreportcard.com/report/github.com/jetstack/cert-manager"><img alt="Go Report Card" src="https://goreportcard.com/badge/github.com/jetstack/cert-manager" /></a></p>
+
 # cert-manager
 
 cert-manager is a Kubernetes add-on to automate the management and issuance of
@@ -90,3 +98,5 @@ Developer documentation is available in the [official documentation](https://doc
 
 The [list of releases](https://github.com/jetstack/cert-manager/releases)
 is the best place to look for information on changes between releases.
+
+<sub><sup>Logo design by [Zoe Paterson](https://zoepatersonmedia.com)</sup></sub>

logo/LICENSE

@@ -0,0 +1,7 @@
+cert-manager project logo (c) by Jetstack Ltd.
+
+cert-manager project logo is licensed under a
+Creative Commons Attribution 4.0 International License.
+
+You should have received a copy of the license along with this
+work. If not, see <http://creativecommons.org/licenses/by/4.0/>.

logo/README.md

@@ -0,0 +1,9 @@
+# Project logo
+
+This directory contains the cert-manager project logo.
+
+It was created by [Zoe Paterson](https://www.zoepatersonmedia.com/).
+
+# Licensing
+
+Please see the [LICENSE](LICENSE) file for information on using the logo.