README.md: some rewording

README.md

@@ -22,10 +22,12 @@ based on [Leaflet](https://leafletjs.com/). The map renderer is heavily inspired
 
 ## How to use
 
-Download both the release that matches your platform, as well as the platform-
-independant viewer archive. Extract the viewer archive. This directory will be made
-publicly accessible on a web server and will contain both the html and javascript to
-operate the viewer, as well as the image data generated by MinedMap.
+Download the binary release that matches your platform from the Github release
+page (or install from source using `cargo`), as well as the platform-independent
+viewer archive. Extract the viewer archive. The extracted directory contains the
+HTML and JavaScript to operate the viewer and will be made publicly accessible
+on a web server. The image data generated by MinedMap will be stored in the
+`data` subdirectory of the extracted viewer.
 
 Minecraft stores its save data in a directory `~/.minecraft/saves` on Linux,
 and `C:\Users\<username>\AppData\Roaming\.minecraft\saves`. To generate MinedMap
@@ -52,9 +54,9 @@ This test server is very slow and cannot handle multiple requests concurrently,
 a proper webserver like [nginx](https://nginx.org/) or upload the viewer together with
 the generated map files to public webspace to make the map available to others.
 
-If you are uploading the directory to a remote webserver, you do not need to upload the 
-`<viewer>/data/processed` directory, as that is only used locally to make updates
-process more quickly.
+If you are uploading the directory to a remote webserver, you do not need to upload the
+`<viewer>/data/processed` directory, as that is only used locally to allow processing
+updates more quickly.
 
 ### Signs