Fixed snippet archiver build and generated README

scripts/build.js

@@ -26,7 +26,7 @@ if(isTravisCI() && (process.env['TRAVIS_EVENT_TYPE'] === 'cron' || process.env['
       .readdirSync(SNIPPETS_ARCHIVE_PATH)
       .sort((a, b) => a.toLowerCase() - b.toLowerCase());
     // Store the data read from each snippet in the appropriate object
-    for (const name of snippetFilenames) {
+    for (const name of snippetFilenames.filter(s => s !== 'README.md')) {
       snippets[name] = fs.readFileSync(path.join(SNIPPETS_ARCHIVE_PATH, name), 'utf8');
     }
   } catch (err) {
@@ -44,7 +44,7 @@ These snippets, while useful and interesting, didn\'t quite make it into the rep
 ## Table of Contents
 
 `
-    for(const snippet of Object.entries(snippets).filter(s => s[0] !== 'README.md'))
+    for(const snippet of Object.entries(snippets))
       output += `* [\`${snippet[0].slice(0,-3)}\`](#${snippet[0].toLowerCase().slice(0,-3)})\n`;
     output += '\n---\n';
     for(const snippet of Object.entries(snippets)){