diff --git a/README.md b/README.md
index 4cbc2c81c..0910be633 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ the [cc65 web site](https://cc65.github.io):
 | MOS Technology, Inc.    | KIM-1                               |
 | NEC                     | PC Engine (PCE)                     |
 | Rumbledethumps          | Picocomputer 6502 (RP6502)          |
-| Watara                  | Watura/QuickShot Supervision        |
+| Watara                  | Watara/QuickShot Supervision        |
 | Synertek                | SYM-1                               |
 | USSR                    | Agat-7/9                            |
 
diff --git a/doc/decompression.sgml b/doc/decompression.sgml
index e4a8b4ca7..e6ab6749f 100644
--- a/doc/decompression.sgml
+++ b/doc/decompression.sgml
@@ -146,7 +146,10 @@ so that decompressing does not overwrite the end of the compressed data too soon
 <sect>Which decompressor to choose<p>
 
 The best decompressor depends on your use-case and whether you favor size or
-speed. This table allows for a simple comparison.
+speed. This table allows for a simple comparison. The numbers come from
+arbitrary real-world data (graphics and code from the Apple II Shufflepuck
+game) in order to give an overview of what to expect from the different
+algorithms.
 Decompression speed is the number of uncompressed bytes per second at 1MHz.
 
 <table><tabular ca="rrrr">