Add nodejs 8 to appveyor (#253)

s0ph1e · web-flow · commit ca8eb96ceefb · 2017-10-16T23:03:57.000+03:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -4,6 +4,7 @@ environment:
   - nodejs_version: "5"
   - nodejs_version: "6"
   - nodejs_version: "7"
+  - nodejs_version: "8"
 
 install:
   - ps: Install-Product node $env:nodejs_version
