Update README.md

- clarified Descriptions and little reorder
- changed size of store-icon
- typo fixes

README.md

@@ -13,9 +13,9 @@
 <img src="http://pooi.moe/QuickLook/sample.gif?3" width="400">
 
 ## Background
-One of the few features I missed from Mac OS X is [Quick Look](https://en.wikipedia.org/wiki/Quick_Look). It allows user peek into a file content in a lightening speed by just pressing the <kbd>Space</kbd> key. Windows, on the other hand, does not has this handy feature ... until now.
+One of the few features I missed from macOS is [Quick Look](https://en.wikipedia.org/wiki/Quick_Look). It allows user peek into a file content in a lightening speed by just pressing the <kbd>Space</kbd> key. Windows, on the other hand, does not have this handy feature ... until now.
 
-I am aware that several alternatives are already available on the Internet (e.g. [WinQuickLook](https://github.com/shibayan/WinQuickLook) and [Seer](https://github.com/ccseer/Seer)). Despite these options, I still decide to craft another one by myself, because they are either not being actively developed, lacks of variety, or asks for a amount of $$$.
+I am aware that several alternatives are already available on the Internet (e.g. [WinQuickLook](https://github.com/shibayan/WinQuickLook) and [Seer](https://github.com/ccseer/Seer)). Despite these options, I still decided to craft another one by myself, because they are either not being actively developed, lack of variety, or ask for a amount of $$$.
 
 ## Highlights
 
@@ -30,27 +30,33 @@ I am aware that several alternatives are already available on the Internet (e.g.
 
 ## Usage
 
-### Download / General usage
+### Download/Installation
 
- [What are the differences between `.msi`, `.zip`, nightly and Store versions?](https://github.com/QL-Win/QuickLook/wiki/Difference-Between-Distributions)
+Get it from one of the following sources:
 
- 1. Download from one of the following
-    * Microsoft Store (for Windows 10 users) <a href="https://www.microsoft.com/store/apps/9nv4bs3l1h4s?ocid=badge" target="_blank"><img src="https://assets.windowsphone.com/13484911-a6ab-4170-8b7e-795c1e8b4165/English_get_L_InvariantCulture_Default.png" width="80px" alt="Store Link" /></a> 
-    * Installer or portable archive of the stable version from [GitHub Release](https://github.com/QL-Win/QuickLook/releases) 
-    * Nightly builds from [AppVeyor](https://ci.appveyor.com/project/xupefei/quicklook/build/artifacts)
- 2. Run `QuickLook.exe`
- 3. Select a file/folder on the Desktop / in a File Explorer window / in an Open- or Save-File dialog
- 4. Press <kbd>Spacebar</kbd>
- 5. Select another file/folder in the same manner
- 6. When you're done, click on the `⨉` button, or press <kbd>Spacebar</kbd> again
+  * Microsoft Store (Windows 10 users only) <a href="https://www.microsoft.com/store/apps/9nv4bs3l1h4s?ocid=badge" target="_blank"><img src="https://assets.windowsphone.com/13484911-a6ab-4170-8b7e-795c1e8b4165/English_get_L_InvariantCulture_Default.png" height="22px" alt="Store Link" /></a> 
+  * Installer or portable archive of the stable version from [GitHub Release](https://github.com/QL-Win/QuickLook/releases) 
+  * Nightly builds from [AppVeyor](https://ci.appveyor.com/project/xupefei/quicklook/build/artifacts)
+
+[What are the differences between `.msi`, `.zip`, Nightly and Store versions?](https://github.com/QL-Win/QuickLook/wiki/Difference-Between-Distributions)
+
+
+### Typical usecase
+
+1. Run `QuickLook.exe` (only necessary if autostart is disabled)
+1. Select any file or folder (on the Desktop, in a File Explorer window, in an *Open* or *Save-File* dialog, doesn't matter)
+1. Press <kbd>Spacebar</kbd>
+1. Enjoy preview and interact with it
+1. Preview next file by clicking on it or using arrow-keys (arrow-keys move selection in the background if the preview hasn't been klicked)
+1. When you're done close it by either hitting <kbd>Spacebar</kbd> again, pressing <kbd>Esc</kbd> or clicking the `⨉` button
 
 ### Hotkeys and buttons
 
  - <kbd>Spacebar</kbd> Show/Hide the preview window
  - <kbd>Esc</kbd> Hide the preview window
  - <kbd>Enter</kbd> Open/Execute current file
  - <kbd>Mouse</kbd> <kbd>↑</kbd> <kbd>↓</kbd> <kbd>←</kbd> <kbd>→</kbd> Preview another file
- - <kbd>Ctrl-Wheel</kbd> Zoom in/out images
+ - <kbd>Ctrl</kbd>+<kbd>Wheel</kbd> Zoom in/out (images & pdf)
  - <kbd>Wheel</kbd> Increase/decrease volume
 
 ## Supported file types, file manager intergation, etc.