fix(example): don't use relative path - not allowed

examples/get.rs

@@ -20,7 +20,8 @@ async fn main() -> kxio::Result<()> {
     // Create a `FileSystem` object for accessing files within the current directory.
     // The object created will return a `PathTraveral` error result if there is an attempt to\
     // access a file outside of this directory.
-    let fs: kxio::fs::FileSystem = kxio::fs::new("./");
+    let current_dir = std::env::current_dir().map_err(kxio::fs::Error::Io)?;
+    let fs: kxio::fs::FileSystem = kxio::fs::new(current_dir);
 
     // The URL we will fetch - the readme for this library.
     let url = "https://git.kemitix.net/kemitix/kxio/raw/branch/main/README.md";