Update README with note on temp files - closes #8

README.md

@@ -12,6 +12,8 @@ envkey-source compiles into a simple static binary with no dependencies, which m
 curl -s https://raw.githubusercontent.com/envkey/envkey-source/master/install.sh | bash
 ```
 
+***Note:** the install.sh script writes, then deletes a couple temporary files to the current directory during installation, so make sure you have write permissions for whatever directory you run this command in. In locked down environments, you may want to run it in `$HOME` to be safe.*
+
 **Install manually:**
 
 Find the [release](https://github.com/envkey/envkey-source/releases) for your platform and architecture, and stick the appropriate binary somewhere in your `PATH` (or wherever you like really).