docs: Fix a few typos

There are small typos in:
- examples/copyrotated.c
- src/gd.c
- src/gd.h
- src/gd_avif.c
- src/gd_nnquant.c
- src/gd_tga.c
- src/gd_topal.c
- src/wbmp.c
- tests/avif/compare_avif_to_png.c

Fixes:
- Should read `requires` rather than `reqiures`.
- Should read `of the` rather than `ofthe`.
- Should read `memory` rather than `memmory`.
- Should read `maximum` rather than `maxmum`.
- Should read `intersection` rather than `intertersection`.
- Should read `hypotenuse` rather than `hypothenus`.
- Should read `flexibility` rather than `flexibilty`.
- Should read `always` rather than `alwasy`.
- Should read `also` rather than `alos`.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gd_avif.c b/src/gd_avif.c
index 3e27dab..5935623 100644
--- a/src/gd_avif.c
+++ b/src/gd_avif.c
@@ -464,7 +464,7 @@ cleanup:
 		speed - At slower speeds, encoding may be quite slow. Use judiciously.
 
 		Qualities or speeds that are lower than the minimum value get clamped to the minimum value,
-		and qualities or speeds that are lower than the maximum value get clamped to the maxmum value.
+		and qualities or speeds that are lower than the maximum value get clamped to the maximum value.
 		Note that AVIF_SPEED_DEFAULT is -1. If we ever set SPEED_DEFAULT = AVIF_SPEED_DEFAULT,
 		we'd want to add a conditional to ensure that value doesn't get clamped.