Add CI (#29)

.github/workflows/tests.yml

@@ -0,0 +1,16 @@
+name: tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  schedule:
+    - cron: "0 13 * * *"
+
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - run: yarn test

README.md

@@ -1,4 +1,4 @@
-[![install size](https://packagephobia.com/badge?p=ip3country)](https://packagephobia.com/result?p=ip3country)
+[![npm version](https://badge.fury.io/js/ip3country.svg)](https://badge.fury.io/js/ip3country) [![install size](https://packagephobia.com/badge?p=ip3country)](https://packagephobia.com/result?p=ip3country) [![tests](https://github.com/statsig-io/ip3country/actions/workflows/tests.yml/badge.svg)](https://github.com/statsig-io/ip3country/actions/workflows/tests.yml)
 
 # ip3country
 
@@ -49,4 +49,4 @@ All variants of "ip2country" were already taken in npm, so we decided to step it
 
 ## Motivation
 
-At [Statsig](https://www.statsig.com), we needed a library to evaluate location-based conditions on Feature Gates (Feature Flags).  We use ip3country to power country-level rollouts or A/B tests for new features.
+At [Statsig](https://www.statsig.com), we needed a library to evaluate location-based conditions on Feature Gates (Feature Flags). We use ip3country to power country-level rollouts or A/B tests for new features.