cleanup, docs

site/doc/pages/gz_compress.txt

@@ -16,9 +16,8 @@ Compresses `src` and returns a gzip-format byte string.
 
 The result is binary data. Store it in a file, send it with an appropriate content type/encoding, or pass it directly to `gz_uncompress()`.
 
-```uce
-String compressed = gz_compress("hello\n");
-file_put_contents("/tmp/hello.txt.gz", compressed);
-```
 
 UCE writes a standard gzip wrapper around a deflate stream, including CRC32 and uncompressed-size footer fields.
+
+:example
+print("gz_compress example\n");