Updated README

Author: ryu1kn

CHANGELOG.md

@@ -5,6 +5,10 @@ All notable changes to "Partial Diff" extension will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+### Added
+- Usage data collecting capability, together with the configuration (`partialDiff.enableTelemetry`) which stops Partial Diff to collect usage data.
+
 ## [1.3.0] - 2018-07-28
 ### Added
 - A configuration for individually show/hide Partial Diff commands on the context menu. [#27](https://github.com/ryu1kn/vscode-partial-diff/issues/27)

README.md

@@ -95,9 +95,16 @@
     ]
     ```
 
+* `partialDiff.enableTelemetry` (default: `true`)
+
+    Allow the extension usage data to be sent to the extension author.
+    Regardless of this flag, Partial Diff does **NOT** send usage data
+    if the editor's [`telemetry.enableTelemetry`](https://code.visualstudio.com/docs/supporting/faq#_how-to-disable-telemetry-reporting) is set to `false`.
+
 * `partialDiff.hideCommandsOnContextMenu` (default: `false`)
 
-    (DEPRECATED) Hide Partial Diff commands on the context menu. Please use `partialDiff.commandsOnContextMenu` instead.
+    (DEPRECATED) Hide Partial Diff commands on the context menu.
+    Please use `partialDiff.commandsOnContextMenu` instead.
 
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