Document how to install this app and what that gives you.

8min.

README.md

@@ -5,3 +5,17 @@ Android. It allows you to compose and publish posts to https://write.as/.
 
 For a UI toolkit it uses GTK (where some systems may slightly prefer, say, Qt), 
 but do to the simplicity of the app this shouldn't be much of a problem to anyone.
+
+## Installation
+Write.as GTK uses the Meson/Ninja build system, and as such you can install it on
+any FreeDesktop.Org compatible system using:
+
+    mkdir build
+    cd build
+    meson ..
+    ninja
+    sudo ninja install
+
+This will install the executable file and the metadata required to integrate with
+those desktops. It also installs metadata to be collected by package repositories
+that integrate certain package managers for richer presentation of apps.