Add example to BigQuery package-info, fix indentation in Storage and ResourceManager

gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/package-info.java

@@ -18,9 +18,28 @@
  * A client to Google Cloud BigQuery.
  *
  * <p>A simple usage example:
- * <pre>{@code
- * //TODO(mziccard): add code example
- * }</pre>
+ * <pre> {@code
+ * BigQuery bigquery = BigQueryOptions.defaultInstance().service();
+ * TableId tableId = TableId.of("dataset", "table");
+ * BaseTableInfo info = bigquery.getTable(tableId);
+ * if (info == null) {
+ *   System.out.println("Creating table " + tableId);
+ *   Field integerField = Field.of("fieldName", Field.Type.integer());
+ *   bigquery.create(TableInfo.of(tableId, Schema.of(integerField)));
+ * } else {
+ *   System.out.println("Loading data into table " + tableId);
+ *   LoadJobInfo loadJob = LoadJobInfo.of(tableId, "gs://bucket/path");
+ *   loadJob = bigquery.create(loadJob);
+ *   while (loadJob.status().state() != JobStatus.State.DONE) {
+ *     Thread.sleep(1000L);
+ *     loadJob = bigquery.getJob(loadJob.jobId());
+ *   }
+ *   if (loadJob.status().error() != null) {
+ *     System.out.println("Job completed with errors");
+ *   } else {
+ *     System.out.println("Job succeeded");
+ *   }
+ * }}</pre>
  *
  * @see <a href="https://cloud.google.com/bigquery/">Google Cloud BigQuery</a>
  */

gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/package-info.java

@@ -18,7 +18,7 @@
  * A client to Google Cloud Resource Manager.
  *
  * <p>Here's a simple usage example for using gcloud-java-resourcemanager:
- * <pre>{@code
+ * <pre> {@code
  * ResourceManager resourceManager = ResourceManagerOptions.defaultInstance().service();
  * String myProjectId = "my-globally-unique-project-id"; // Change to a unique project ID.
  * ProjectInfo myProject = resourceManager.create(ProjectInfo.builder(myProjectId).build());

gcloud-java-storage/src/main/java/com/google/gcloud/storage/package-info.java

@@ -18,7 +18,7 @@
  * A client to Google Cloud Storage.
  *
  * <p>Here's a simple usage example for using gcloud-java from App/Compute Engine:
- * <pre>{@code
+ * <pre> {@code
  * Storage storage = StorageOptions.defaultInstance().service();
  * BlobId blobId = BlobId.of("bucket", "blob_name");
  * Blob blob = Blob.load(storage, blobId);