fix: ignore branch gh-pages in circleci build

Author: foryuki

.circleci/config.yml

@@ -1,38 +1,24 @@
-# Javascript Node CircleCI 2.0 configuration file
-#
-# Check https://circleci.com/docs/2.0/language-javascript/ for more details
-#
 version: 2
 jobs:
   build:
     docker:
-      # specify the version you desire here
       - image: circleci/node:10.11
-
-      # Specify service dependencies here if necessary
-      # CircleCI maintains a library of pre-built images
-      # documented at https://circleci.com/docs/2.0/circleci-images/
-      # - image: circleci/mongo:3.4.4
-
     working_directory: ~/repo
-
     steps:
       - checkout
-
       # Download and cache dependencies
       - restore_cache:
           keys:
           - v1-dependencies-{{ checksum "package.json" }}
           # fallback to using the latest cache if no exact match is found
           - v1-dependencies-
-
       - run: yarn install
-
       - save_cache:
           paths:
             - node_modules
           key: v1-dependencies-{{ checksum "package.json" }}
-
       # run tests!
       - run: yarn test
-
+    branches:
+      ignore:
+        - gh-pages