Add documentation comments for all items

src/io/data.rs

@@ -1,9 +1,12 @@
+//! Functions for reading and deserializing compressed NBT data
+
 use std::{fs::File, io::prelude::*, path::Path};
 
 use anyhow::{Context, Result};
 use flate2::read::GzDecoder;
 use serde::de::DeserializeOwned;
 
+/// Reads compressed NBT data from a reader and deserializes to a given data structure
 pub fn from_reader<R, T>(reader: R) -> Result<T>
 where
 	R: Read,
@@ -18,6 +21,7 @@ where
 	fastnbt::from_bytes(&buf).context("Failed to decode NBT data")
 }
 
+/// Reads compressed NBT data from a file and deserializes to a given data structure
 pub fn from_file<P, T>(path: P) -> Result<T>
 where
 	P: AsRef<Path>,