Update quick start instructions for Octave on macOS

resources/quick_start.md

@@ -104,19 +104,11 @@ If you don’t want to type this command every time you run Octave, you can put
 
 ## Using Dynare with Octave
 
- 1. Download and install [Homebrew](https://brew.sh/) following the instructions on their site
- 1. Install Octave and Dynare via Homebrew
-    1. Open Terminal (`Applications->Utilities->Terminal`)
-    1. At the terminal prompt, type:
-       ```
-       brew update && brew upgrade && brew install dynare
-       ```
+ 1. Download and install the [latest Dynare package](/download#stable)
+ 1. Download and install the [Octave app for macOS](https://octave-app.org). Be
+    careful to install the Octave version that is compatible with the Dynare
+    package you downloaded (as indicated on the Dynare download page)
  1. Open Octave
-    1. Open Terminal (`Applications->Utilities->Terminal`)
-    1. At the terminal prompt, type:
-    ```
-    octave
-    ```
  1. Configure Octave for Dynare (see [the section below](#configuring-octave-for-dynare-on-macos))
  1. Run a Dynare example in Octave (see [the section below](#running-and-editing-a-dynare-example-on-macos))