Add copyrights

Author: rjmholt

.gitignore

@@ -1,6 +1,7 @@
 node_modules
 *.swp
 build
+*.gyp
 
 # see https://stackoverflow.com/a/5534865
 !src/

README.md

@@ -1,5 +1,12 @@
 # PowerShell support for tree-sitter
 
+A [tree-sitter](http://tree-sitter.github.io/tree-sitter/)
+implemenation for [PowerShell](https://github.com/PowerShell/PowerShell).
+
+## License
+
+See [LICENSE](LICENSE).
+
 ## Initial goal
 
 Parse the [big test file from EditorSyntax](https://github.com/PowerShell/EditorSyntax/blob/master/examples/TheBigTestFile.ps1) completely.

binding.gyp

@@ -1,3 +1,8 @@
+# ------------------------------------------------------------------------------------------------------
+#  Copyright (C) Microsoft. All rights reserved.
+#  Licensed under the MIT license. See LICENSE file in the project root for full license information.
+# -------------------------------------------------------------------------------------------------------
+
 param(
     [Parameter()]
     [switch]

build.ps1

@@ -1,3 +1,8 @@
+//-------------------------------------------------------------------------------------------------------
+// Copyright (C) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//-------------------------------------------------------------------------------------------------------
+
 const PREC = {
   COMMENT: 1,
   STRING: 2,

grammar.js

@@ -1,3 +1,8 @@
+//-------------------------------------------------------------------------------------------------------
+// Copyright (C) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//-------------------------------------------------------------------------------------------------------
+
 try {
   module.exports = require("./build/Release/tree_sitter_PowerShell_binding");
 } catch (error) {

index.js

@@ -1,5 +1,5 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
+// Licensed under the MIT License. See the LICENSE file in the project root for full license information.
 
 #include <tree_sitter/parser.h>
 #include <wctype.h>