add GitHub Actions

.github/FUNDING.yml

@@ -0,0 +1,4 @@
+# These are supported funding model platforms
+
+github: [ktr0731]
+custom: https://paypal.me/ktr0731

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+## Describe the bug
+
+## To reproduce
+<!--
+Please write steps that reproduce the error.
+If possible, please provide a Docker image for reproducing the error.
+-->
+
+## Expected behavior
+
+## Screenshots
+<!-- If applicable, add screenshots to help explain your problem. -->
+
+## Environment
+- OS: 
+- Terminal: 
+- go-fuzzyfinder version: 
+
+## Additional context
+<!-- Add any other context about the problem here. -->

.github/no-response.yml

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+daysUntilClose: 7
+responseRequiredLabel: 'response needed'
+closeComment: >
+  This issue has been automatically closed because there has been no response
+  to our request for more information from the original author. With only the
+  information that is currently in the issue, we don't have enough information
+  to take action. Please reach out if you have or find the answers we need so
+  that we can investigate further.

.github/workflows/main.yml

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+name: main
+on: [push, pull_request]
+jobs:
+  test:
+    name: Build on ${{ matrix.os }} with Go ${{ matrix.go }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+        go: ['1.14']
+    steps:
+    - name: Set up Go ${{ matrix.go }}
+      uses: actions/setup-go@v2
+      with:
+        go-version: ${{ matrix.go }}
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Download dependencies
+      run: go mod download
+
+    - name: Cache modules
+      uses: actions/cache@v2
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.OS }}-go-${{ hashFiles('**/go.sum') }}
+
+    - name: Build
+      run: go build
+
+    - name: Test
+      run: go test -v ./...
+
+    - name: Lint
+      uses: golangci/golangci-lint-action@v2
+      with:
+        version: v1.33.0

README.md

@@ -1,6 +1,7 @@
 # apigen
 
 [![PkgGoDev](https://pkg.go.dev/badge/github.com/ktr0731/apigen)](https://pkg.go.dev/github.com/ktr0731/apigen)
+[![GitHub Actions](https://github.com/ktr0731/apigen/workflows/main/badge.svg)](https://github.com/ktr0731/apigen/actions)  
 
 `apigen` generates API client via execution environment such as `curl`.