fix: tweak logo size

Author: broofa

README.md

@@ -219,4 +219,4 @@ them, but the following works pretty well for me:
 
 ---
 
-Markdown generated from [src/README_js.md](src/README_js.md) by <a href="https://github.com/broofa/runmd"><image height="12px" src="https://camo.githubusercontent.com/5c7c603cd1e6a43370b0a5063d457e0dabb74cf317adc7baba183acb686ee8d0/687474703a2f2f692e696d6775722e636f6d2f634a4b6f3662552e706e67" /></a>
+Markdown generated from [src/README_js.md](src/README_js.md) by <a href="https://github.com/broofa/runmd"><image height="13" src="https://camo.githubusercontent.com/5c7c603cd1e6a43370b0a5063d457e0dabb74cf317adc7baba183acb686ee8d0/687474703a2f2f692e696d6775722e636f6d2f634a4b6f3662552e706e67" /></a>

index.js

@@ -7,8 +7,7 @@ const requireLike = require('require-like');
 const RESULT_RE = /\/\/\s*RESULT\s*$/;
 const LARGE_RESULT_LINES = 2; // Number of lines that constitute a "large" result
 
-const RUNMD_LOGO =
-  'https://camo.githubusercontent.com/5c7c603cd1e6a43370b0a5063d457e0dabb74cf317adc7baba183acb686ee8d0/687474703a2f2f692e696d6775722e636f6d2f634a4b6f3662552e706e67';
+const LINK_MARKDOWN = `<a href="https://github.com/broofa/runmd"><image height="13" src="https://camo.githubusercontent.com/5c7c603cd1e6a43370b0a5063d457e0dabb74cf317adc7baba183acb686ee8d0/687474703a2f2f692e696d6775722e636f6d2f634a4b6f3662552e706e67" /></a>`;
 
 /**
  * Represents a line of source showing an evaluated expression
@@ -310,21 +309,18 @@ function render(inputText, options = {}) {
     }
   });
 
-  const linkMarkdown = `<a href="https://github.com/broofa/runmd"><image height="12px" src="https://camo.githubusercontent.com/5c7c603cd1e6a43370b0a5063d457e0dabb74cf317adc7baba183acb686ee8d0/687474703a2f2f692e696d6775722e636f6d2f634a4b6f3662552e706e67" /></a>`;
   if (!lame) {
     _write('---');
     _write('');
     _write(
       outputName
-        ? `Markdown generated from [${inputName}](${inputName}) by ${linkMarkdown}`
-        : `Markdown generated by ${linkMarkdown}`
+        ? `Markdown generated from [${inputName}](${inputName}) by ${LINK_MARKDOWN}`
+        : `Markdown generated by ${LINK_MARKDOWN}`
     );
     _write('');
   }
 
   return outputLines.join('\n');
 }
 
-module.exports = {
-  render
-};
+module.exports = { render };