updated NOTICE.txt and configuration

Author: lieut-data

.config/notice-file/README.md

@@ -0,0 +1,28 @@
+# Notice.txt File Configuration
+
+We are automatically generating Notice.txt by using first-level dependencies of the project. The related pipeline uses `config.yaml` stored in this folder.
+
+
+## Configuration
+
+Sample:
+
+```
+title: "Mattermost Playbooks"
+copyright: "©2015-present Mattermost, Inc.  All Rights Reserved.  See LICENSE for license information."
+description: "This document includes a list of open source components used in Mattermost Playbooks, including those that have been modified."
+search:
+  - "go.mod"
+  - "client/go.mod"
+dependencies: []
+devDependencies: []
+```
+
+| Field | Type   | Purpose |
+| :--   | :--    | :--     |
+| title | string | Field content will be used as a title of the application. See first line of `NOTICE.txt` file. |
+| copyright | string | Field content will be used as a copyright message. See second line of `NOTICE.txt` file. |
+| description | string | Field content will be used as notice file description. See third line of `NOTICE.txt` file. |
+| dependencies | array | If any dependency name mentioned, it will be automatically added even if it is not a first-level dependency. |
+| devDependencies | array | If any dependency name mentioned, it will be added when it is referenced in devDependency section. |
+| search | array | Pipeline will search for package.json/go.mod files mentioned here. Globstar format is supported ie. `x/**/go.mod`. |

.config/notice-file/config.yaml

@@ -0,0 +1,9 @@
+---
+title: "Mattermost GitHub Plugin"
+copyright: "©2018-present Mattermost, Inc. All Rights Reserved. See LICENSE.txt for license information."
+description: "This document includes a list of open source components used in the plugin, including those that have been modified."
+search:
+  - "go.mod"
+  - "webapp/package.json"
+dependencies: []
+devDependencies: []

.gitignore

@@ -15,3 +15,6 @@ server/plugin/manifest.go
 
 # VS Code
 .vscode
+
+# notice
+.notice-work