GitHub actions (#13)

* GitHub actions

* Always run verify workflow

* Change job name of verify workflow

* Change README badges

.github/workflows/verify.yml

@@ -0,0 +1,41 @@
+name: Verify
+
+on: [push]
+
+jobs:
+  go-vet-lint-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: stable
+
+      - name: Verify dependencies
+        run: go mod verify
+
+      - name: Run go vet
+        run: go vet ./...
+
+      - name: Install staticcheck
+        run: go install honnef.co/go/tools/cmd/staticcheck@latest
+
+      - name: Run staticcheck
+        run: staticcheck ./...
+
+      - name: Install golint
+        run: go install golang.org/x/lint/golint@latest
+
+      - name: Run golint
+        run: golint ./...
+
+      - name: Run tests
+        run: go test -race -vet=off -json ./... > TestResults.json
+
+      - name: Upload Go test results
+        uses: actions/upload-artifact@v3
+        with:
+          name: Go-test-results
+          path: TestResults.json

README.md

@@ -1,6 +1,6 @@
 A fast ISO8601 date parser for Go
 
-[![go.dev reference](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/github.com/relvacode/iso8601) [![GoDoc](https://godoc.org/github.com/relvacode/iso8601?status.svg)](https://godoc.org/github.com/relvacode/iso8601) [![Build Status](https://travis-ci.org/relvacode/iso8601.svg?branch=master)](https://travis-ci.org/relvacode/iso8601) [![Go Report Card](https://goreportcard.com/badge/github.com/relvacode/iso8601)](https://goreportcard.com/report/github.com/relvacode/iso8601)
+[![GoDoc](https://godoc.org/github.com/relvacode/iso8601?status.svg)](https://godoc.org/github.com/relvacode/iso8601) ![Build Status](https://github.com/relvacode/iso8601/actions/workflows/verify.yml/badge.svg) [![Go Report Card](https://goreportcard.com/badge/github.com/relvacode/iso8601)](https://goreportcard.com/report/github.com/relvacode/iso8601)
 
 
 ```
@@ -14,6 +14,8 @@ This library parses any ISO8601 date into a native Go time object without regula
 ## Usage
 
 ```go
+package main
+
 import "github.com/relvacode/iso8601"
 
 // iso8601.Time can be used as a drop-in replacement for time.Time with JSON responses

error.go

@@ -37,6 +37,7 @@ func (e *UnexpectedCharacterError) Error() string {
 	return fmt.Sprintf("iso8601: Unexpected character `%c`", e.Character)
 }
 
+// RangeError indicates that a value is not in an expected range.
 type RangeError struct {
 	Value   string
 	Element string