Add missing comments to Ona module

src/oar/main.zig

@@ -171,3 +171,7 @@ pub fn main() u8 {
 
     return 0;
 }
+
+test {
+
+}

src/ona/main.zig

@@ -1,25 +1,33 @@
 
 ///
-///
+/// Platform-agnostic input and output interfaces for working with memory, files, and networks.
 ///
 pub const io = @import("./io.zig");
 
 ///
-///
+/// Memory utilities.
 ///
 pub const mem = @import("./mem.zig");
 
 ///
-///
+/// Metaprogramming introspection utilities
 ///
 pub const meta = @import("./meta.zig");
 
 ///
-///
+/// Sequential last-in first-out data structures.
 ///
 pub const stack = @import("./stack.zig");
 
 ///
-///
+/// Unordered key-value association data structures.
 ///
 pub const table = @import("./table.zig");
+
+test {
+    _ = io;
+    _ = mem;
+    _ = meta;
+    _ = stack;
+    _ = table;
+}