.github: setup GitHub related things (#13)

- Added Github Actions
- Replaced `ISSUE_TEMPLATE.md`

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,17 @@
+## PHP Version
+
+// The version on which the error is reproduced.
+
+## Code Example
+
+```php
+// your code here
+```
+
+## Actual Behavior
+
+// Example of incorrect error
+
+## Expected Behavior
+
+// Description of what you expected

.github/workflows/go.yml

@@ -0,0 +1,21 @@
+# This file adheres to the YAML5 style.
+{
+  name: "Go",
+  on: ["push", "pull_request"],
+  jobs: {
+    build: {
+      name: "Build",
+      "runs-on": "ubuntu-latest",
+      steps: [
+        {
+          name: "Set up Go 1.16",
+          uses: "actions/setup-go@v1",
+          "with": {"go-version": 1.16},
+          id: "go",
+        },
+        {name: "Check out code into the Go module directory", uses: "actions/checkout@v1"},
+        {name: "Tests", run: "make test"},
+      ],
+    },
+  },
+}

ISSUE_TEMPLATE.md

@@ -1 +0,0 @@
-

Makefile

@@ -10,7 +10,7 @@ build:
 	go build ./cmd/...
 
 test:
-	go test ./...
+	go test -v ./...
 
 cover:
 	go test ./... --cover

README.md

@@ -6,7 +6,7 @@ PHP Parser written in Go
 <img src="./parser.jpg" alt="PHP Parser written in Go" width="980"/>
 
 [![GoDoc](https://godoc.org/github.com/VKCOM/php-parser?status.svg)](https://godoc.org/github.com/VKCOM/php-parser)
-[![Build Status](https://travis-ci.org/z7zmey/php-parser.svg?branch=master)](https://travis-ci.org/z7zmey/php-parser)
+[![Build Status](https://github.com/VKCOM/php-parser/workflows/Go/badge.svg)](https://github.com/VKCOM/php-parser/workflows/Go)
 [![Go Report Card](https://goreportcard.com/badge/github.com/VKCOM/php-parser)](https://goreportcard.com/report/github.com/VKCOM/php-parser)
 
 This project uses [goyacc](https://godoc.org/golang.org/x/tools/cmd/goyacc) and [ragel](https://www.colm.net/open-source/ragel/) tools to create PHP parser. It parses source code into [AST](https://en.wikipedia.org/wiki/Abstract_syntax_tree). It can be used to write static analysis, refactoring, metrics, code style formatting tools.