add sample back and revert gulp changes

Author: pballai

site/gulpfile.js

@@ -142,10 +142,9 @@ gulp.task('export:codelabs', (callback) => {
     // claat.run(CODELABS_SRC_DIR, 'export', CODELABS_ENVIRONMENT, CODELABS_FORMAT, DEFAULT_GA, "../../"+CODELABS_BUILD_DIR, sources, callback);
     claat.run(CODELABS_SRC_DIR, 'export', CODELABS_ENVIRONMENT, CODELABS_FORMAT, DEFAULT_GA, "../../" + CODELABS_BUILD_DIR, CODELABS_ELEMENTS_PREFIX, sources, callback);
   } else {
-    const sources = ["**/*.md", "!_imports/**"];
-    // const sources = ["[^_]*/*.md"]; //export all markdown files in the src directory, except _imports
+    const sources = ["[^_]*/*.md"]; //export all markdown files in the src directory, except _imports
     // claat.run(CODELABS_SRC_DIR, 'export', CODELABS_ENVIRONMENT, CODELABS_FORMAT, DEFAULT_GA, "../../"+CODELABS_BUILD_DIR, sources, callback);
-    claat.run(CODELABS_SRC_DIR, 'export', CODELABS_ENVIRONMENT, CODELABS_FORMAT, DEFAULT_GA, "../../" + CODELABS_BUILD_DIR, CODELABS_ELEMENTS_PREFIX, sources, callback, { noDrive: true });
+    claat.run(CODELABS_SRC_DIR, 'export', CODELABS_ENVIRONMENT, CODELABS_FORMAT, DEFAULT_GA, "../../" + CODELABS_BUILD_DIR, CODELABS_ELEMENTS_PREFIX, sources, callback);
   }
 });
 

site/sigmaguides/src/_imports/sample_import.md

@@ -0,0 +1,14 @@
+This content has been imported from another markdown file. An imported document is called a fragment. Fragments are great when you have common information across multiple sfguides. 
+
+
+While you can embed things like images, videos, and surveys inside a fragment; you cannot define additional, top-level steps inside a fragment. 
+
+### Videos
+<video id="dQw4w9WgXcQ"></video>
+
+### Inline Surveys
+<form>
+  <name>What is your favorite color?</name>
+  <input type="radio" value="Blue">
+  <input type="radio" value="Green">
+</form>