makefile: ignore SVGs

makefile

@@ -363,7 +363,7 @@ clean-docs:
 codespell:
 	@codespell docs src tools \
 		--ignore-words=scripts/codespell-dictionary.txt \
-		--skip "*.ttf.h,*.css,*.jpg,*.png,*.xcf,docs/_*,tools/level_editor/resources/theme/Adwaita" \
+		--skip "*.ttf.h,*.css,*.jpg,*.png,*.svg,*.xcf,docs/_*,tools/level_editor/resources/theme/Adwaita" \
 		-q4 # 4: omit warnings about automatic fixes that were disabled in the dictionary.
 
 .PHONY: cppcheck