Merge pull request #376 from aaronfranke/plugin-demos

Update and improve plugin demos

Author: aaronfranke

README.md

@@ -6,9 +6,12 @@ be used with [Godot Engine](https://godotengine.org), the open source
 
 ## Important note
 
-- The `master` branch is compatible with the latest Godot version (currently 3.1).
-- Use the appropriate branch for your Godot version, such as the
-  [`2.1`](https://github.com/godotengine/godot-demo-projects/tree/2.1) branch
+- The `master` branch is compatible with the latest stable Godot version (currently 3.1).
+- If you are using an older version of Godot, use the appropriate branch for your Godot version:
+
+  - [`3.0`](https://github.com/godotengine/godot-demo-projects/tree/3.0) branch
+  for Godot 3.0.x.
+  - [`2.1`](https://github.com/godotengine/godot-demo-projects/tree/2.1) branch
   for Godot 2.1.x.
 
 ## Useful links

plugins/README.md

@@ -0,0 +1,9 @@
+# Plugin demos
+
+To use these plugins, copy any of these folders to the `addons/` folder in a Godot project.
+
+For example, the path would look like: `addons/custom_node`
+
+Plugins can be distributed and installed from the UI. If you make a zip that contains the folder, Godot will recognize it as a plugin and will allow you to install it.
+
+This can be done via the terminal: `zip -r custom_node.zip custom_node/*`