feat: improve markdown output (#14)

Author: LouisBrunner

dist/index.js

@@ -48,7 +48,9 @@ export const createComment = async (
     body: `## ${getTitle(label)}: ${result.passed ? 'Success' : 'Failure'}
 ${result.summary}
 
+\`\`\`
 ${result.output}
+\`\`\`
 `,
   });
 };

src/notifications.ts

@@ -26,9 +26,9 @@ const compareTolerance = (expected: Inputs.Tolerance, result: Inputs.Tolerance):
 
 const getSummary = (passed: boolean, expected: Inputs.Tolerance, result: Inputs.Tolerance): string => {
   if (!passed) {
-    return `Expected tolerance '${expected}' but got '${result}' instead`;
+    return `Expected tolerance \`${expected}\` but got \`${result}\` instead`;
   }
-  return `Check succeeded with tolerance '${result}' (expected '${expected}' or better)`;
+  return `Check succeeded with tolerance \`${result}\` (expected \`${expected}\` or better)`;
 };
 
 export const processDiff = (old: string, newPath: string, mode: Inputs.Mode, expected: Inputs.Tolerance): Result => {