build: using gh actions

.github/main.workflow

@@ -0,0 +1,36 @@
+workflow "Deploy workflow" {
+  on = "push"
+  resolves = ["Deploy"]
+}
+
+action "Install" {
+  uses = "docker://node:alpine"
+  runs = "yarn"
+  args = "install"
+}
+
+action "Lint" {
+  uses = "docker://node:alpine"
+  needs = ["Install"]
+  runs = "yarn"
+  args = "lint"
+}
+
+action "Build" {
+  uses = "docker://node:alpine"
+  needs = ["Lint"]
+  runs = "yarn"
+  args = "build"
+}
+
+action "Ensure publish branch" {
+  needs = "Build"
+  uses = "actions/bin/filter@46ffca7632504e61db2d4cb16be1e80f333cb859"
+  args = "branch publish"
+}
+
+action "Deploy" {
+  uses = "haishanh/actions/gh-pages@master"
+  needs = ["Ensure publish branch"]
+  secrets = ["TOKEN"]
+}