Fix order of two entries in thanks file

'dds' comes before 'dg'.

thanks-for-fixes.md

@@ -900,26 +900,6 @@ links and the user executes does that make the compiler the jury, the linker the
 judge and user the executioner? :-)
 
 
-## [1990/dg](1990/dg/dg.c) ([README.md](1990/dg/README.md]))
-
-Cody fixed this for modern systems. There were two problems to be resolved.
-
-One can no longer do:
-
-```c
-#define d define
-
-#d b12(x) 12 x
-
-/* etc. */
-```
-
-so the use of `#d` is now instead `#define` (the macro was originally deleted
-but later Cody added it back to make it more like the original).
-
-The second problem was suggested by the judges at the time of judging, to do
-with if the C preprocessor botches single quotes in cpp expansion.
-
 ## [1990/dds](1990/dds/dds.c) ([README.md](1990/dds/README.md]))
 
 Yusuke and Cody in conjunction fixed this for modern systems (both fixed a
@@ -945,6 +925,27 @@ to read from another file and in this place nothing was changed.
 
 With these improvements the entry looks much more like the original!
 
+
+## [1990/dg](1990/dg/dg.c) ([README.md](1990/dg/README.md]))
+
+Cody fixed this for modern systems. There were two problems to be resolved.
+
+One can no longer do:
+
+```c
+#define d define
+
+#d b12(x) 12 x
+
+/* etc. */
+```
+
+so the use of `#d` is now instead `#define` (the macro was originally deleted
+but later Cody added it back to make it more like the original).
+
+The second problem was suggested by the judges at the time of judging, to do
+with if the C preprocessor botches single quotes in cpp expansion.
+
 ## [1990/jaw](1990/jaw/jaw.c) ([README.md](1990/jaw/README.md]))
 
 Cody fixed the script to work properly in modern environments including paths,