refactor: use prismjs from unpkg

gulpfile.js

@@ -33,10 +33,6 @@ gulp.task("js", function () {
     .pipe(gulp.dest("static/js"));
 });
 
-gulp.task("vendor", function () {
-  return gulp.src("src/vendor/**/**").pipe(gulp.dest("static/vendor"));
-});
-
 gulp.task("watch", function () {
   gulp.watch("src/styles/**/*.styl", gulp.series("styles"));
   gulp.watch("src/js/**/*.js", gulp.series("js"));
@@ -46,4 +42,4 @@ gulp.task("watch", function () {
 // before watching the src/styles and src/js directoryies
 gulp.task("default", gulp.series(gulp.parallel("styles", "js"), "watch"));
 // The build task is run on yarn build:assets
-gulp.task("build", gulp.parallel("styles", "js", "vendor"));
+gulp.task("build", gulp.parallel("styles", "js"));

layouts/blog/single.html

@@ -25,5 +25,5 @@
   <p>{{ replace .Site.Copyright "{year}" now.Year }}</p>
 </footer>
 {{ end }} {{ define "scripts" }}
-<script src="/vendor/prism/prism.js"></script>
+<script src="https://unpkg.com/prismjs@^1.2"></script>
 {{ end }}