fix: circle ci instead of jenkins

TESTING.md

@@ -2,45 +2,4 @@
 
 Testing is a project specific concern. That being said, each project may use a jenkins pipeline to setup CI and CD for the project.
 
-We use [jenkins-vagrant](https://github.com/etclabscore/jenkins-vagrant)
-
-Here is an example [jenkinsfile](https://jenkins.io/doc/book/pipeline/jenkinsfile/) that runs node project tests in each of osx, linux and windows:
-
-```
-pipeline {
-  agent none
-  stages {
-    stage('Run Tests') {
-      parallel {
-        stage('test') {
-          agent {
-            label 'macos'
-          }
-          steps {
-              sh 'npm install'
-              sh 'npm test'
-          }
-        }
-        stage('linux') {
-          agent {
-            label 'linux'
-          }
-          steps {
-            sh 'npm install'
-            sh 'npm test'
-          }
-        }
-        stage('windows') {
-          agent {
-            label 'windows'
-          }
-          steps {
-            bat 'npm install'
-            bat 'npm test'
-          }
-        }
-      }
-    }
-  }
-}
-```
+We use circleci for this project.