Add a bit of introduction stuff to CONTRIBUTING.md
Add a bit of introduction stuff to CONTRIBUTING.md

hollomancer/operationcode_frontend,OperationCode/operationcode_frontend,sethbergman/operationcode_frontend,hollomancer/operationcode_frontend,sethbergman/operationcode_frontend,OperationCode/operationcode_frontend,OperationCode/operationcode_frontend,hollomancer/operationcode_frontend,sethbergman/operationcode_frontend