INSTALLATION.md in trackler-2.2.1.100

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+ new
@@ -1,13 +1,19 @@
-## Dart
-* [Install Dart](https://www.dartlang.org/install)
-* Add the Dart SDK to your path.
-* From a new command window, type `dart --version` to verify that Dart is now available.
+## Installing Dart
 
-## Dart Plugin for your IDE or Editor
-* If you are using an IDE or an editor, [install and configure the Dart plugin](https://www.dartlang.org/tools).
+### Automatic installation instructions (recommended)
+* Follow the [instructions for installation on the Dart website](https://www.dartlang.org/install).
 
-## Setting up Dart on your IDE
-* Setup the Dart SDK and Dartium by going in your IDE's settings and add the Dart SDK
-* Note: For HomeBrew Mac users the Dart SDK and Dartium locations are:
-  * SDK directory: HOMEBREW_INSTALL/dart/1.24.2/libexec
-  * Dartium: HOMEBREW_INSTALL/dart/1.24.2/Chromium.app
+### Manual install instructions (for advanced users)
+* Download a zip file from [this page](https://www.dartlang.org/install/archive).
+* Unzip the file into whatever directory you choose.
+* Add the full path of that directory to your PATH.
+    * Follow the links below for updating your PATH on Windows, Linux and Mac platforms:
+        * [Instructions for Windows](https://www.computerhope.com/issues/ch000549.htm)
+        * [Instructions for Linux](https://www.computerhope.com/issues/ch001647.htm)
+        * [Instructions for Mac](https://www.pegaxchange.com/tag/macos-sierra-add-entry-to-path-variable/)
+
+#### Verify Installation
+* From a new command window or terminal, type `dart --version` to verify that Dart is now available. If the output shows the version number, then Dart is correctly installed on your computer.
+
+## Dart Plugin for your IDE or Editor
+* If you are using an IDE or an editor, [install and configure the Dart plugin](https://www.dartlang.org/tools) if it exists for your editor of choice.