docs(readme): Update with latest information about downloading from s…

…tore

README.md

@@ -9,14 +9,9 @@ Or how many disparate technology components you've leverage in your own solution
 Logo Slide Maker is a Windows Desktop application to build, preview, and generate PowerPoint presentations containing
 logos with text. It can also be run from a terminal window. 
 
-## Installing
+## Getting started
 
-Head over to the [Releases](https://github.com/jcoliz/LogoSlideMaker/releases) section to download the latest MSIX for your architecture. Before installing it the first time,
-you'll need to download and trust the matching certificate file (.cer). In the future, the app will be available in the Microsoft Store.
-
-## Getting Started
-
-Here's the basic getting started guide:
+Get the [latest version from the Microsoft Store](https://apps.microsoft.com/detail/9p09gnvhnl72). Then follow these simple steps to get started:
 
 1. Create a TOML file describing your logos. Feel free to start with the [sample](./sample/sample.toml)!
 1. Open the TOML file in the app to preview.
@@ -28,3 +23,12 @@ Here's the basic getting started guide:
 
 For details on future planned features, please visit the [Issues](https://github.com/jcoliz/LogoSlideMaker/issues) section. Feel free to file an issue there to report a
 bug or suggest a new feature.
+
+## Other versions
+
+The [Releases](https://github.com/jcoliz/LogoSlideMaker/releases) contains an archive of past releases.
+Also new releases will be available here for a few days before they show up in the store, as it takes
+a few days for the app to pass through the store certification. Download the latest MSIX for your architecture. 
+
+If you're downloading a release directly, you'll need to download the matching security certificate (.cer). Install it in the "Local Machine" location, in the "Trusted Root Certificate Authorities" store. This step is
+not needed if you're installing from the store (recommended).