Minor fix to math spec, change to .md extension

script/cibuild

@@ -34,11 +34,11 @@ if [ x"$SPEC" = "xtrue" ]; then
 	# python3 roundtrip_tests.py --spec extensions-table-prefer-style-attributes.txt "$PROGRAM_ARG --table-prefer-style-attributes" --extensions "table strikethrough autolink tagfilter footnotes tasklist" || failed=1
 	python3 roundtrip_tests.py --spec extensions-full-info-string.txt "$PROGRAM_ARG --full-info-string" \
 		|| failed=1
-	python3 spec_tests.py --no-normalize --spec ../../../src/tests/fixtures/multiline_blockquote.txt "$PROGRAM_ARG -e multiline-block-quotes" \
+	python3 spec_tests.py --no-normalize --spec ../../../src/tests/fixtures/multiline_blockquote.md "$PROGRAM_ARG -e multiline-block-quotes" \
 		|| failed=1
-  python3 spec_tests.py --no-normalize --spec ../../../src/tests/fixtures/math_dollars.txt "$PROGRAM_ARG -e math-dollars" \
+  python3 spec_tests.py --no-normalize --spec ../../../src/tests/fixtures/math_dollars.md "$PROGRAM_ARG -e math-dollars" \
     || failed=1
-  python3 spec_tests.py --no-normalize --spec ../../../src/tests/fixtures/math_code.txt "$PROGRAM_ARG -e math-code" \
+  python3 spec_tests.py --no-normalize --spec ../../../src/tests/fixtures/math_code.md "$PROGRAM_ARG -e math-code" \
     || failed=1
 
 	python3 spec_tests.py --no-normalize --spec regression.txt "$PROGRAM_ARG" \

src/tests/fixtures/math_code.txt → src/tests/fixtures/math_code.md

@@ -4,7 +4,7 @@ version: 0.1
 date: '2024-03-22'
 license: '[CC-BY-SA 4.0](http://creativecommons.org/licenses/by-sa/4.0/)'
 based_on: https://docs.gitlab.com/ee/user/markdown.html#math
-...
+---
 
 # TeX Math
 

src/tests/fixtures/math_dollars.txt → src/tests/fixtures/math_dollars.md

@@ -1,7 +1,7 @@
 ---
 title: Dollar Math
 based_on: https://github.com/jgm/commonmark-hs/blob/master/commonmark-extensions/test/math.md
-...
+---
 
 # TeX Math
 
@@ -40,8 +40,9 @@ $$
 e=mc^2
 $$
 .
-<p>This is display math:</p>
-<p><span data-math-style="display">e=mc^2
+<p>This is display math:
+<span data-math-style="display">
+e=mc^2
 </span></p>
 ````````````````````````````````
 
@@ -105,7 +106,8 @@ $$
 .
 <p>This is inline display math
 <span data-math-style="display">1+2</span></p>
-<p>This is block math</p>
-<p><span data-math-style="display">1+2
+<p>This is block math
+<span data-math-style="display">
+1+2
 </span></p>
 ````````````````````````````````

src/tests/fixtures/multiline_blockquote.txt → src/tests/fixtures/multiline_blockquote.md

@@ -3,7 +3,7 @@ title: GitLab Flavored Markdown Spec
 version: 0.1
 date: '2023-12-18'
 license: '[CC-BY-SA 4.0](http://creativecommons.org/licenses/by-sa/4.0/)'
-...
+---
 
 ## Multi-line Blockquotes