Fix missing end of sentence.

Author: sjwaight

articles/event-grid/storage-upload-process-images.md

@@ -104,7 +104,7 @@ az storage account create --name $blobStorageAccount --location southeastasia \
 
 ## Create Blob storage containers
 
-The app uses two containers in the Blob storage account. Containers are similar to folders and store blobs. The *images* container is where the app uploads full-resolution images. In a later part of the series, an Azure function app uploads resized image thumbnails to the *thumbnail
+The app uses two containers in the Blob storage account. Containers are similar to folders and store blobs. The *images* container is where the app uploads full-resolution images. In a later part of the series, an Azure function app uploads resized image thumbnails to the *thumbnail* container.
 
 The *images* container's public access is set to `off`. The *thumbnails* container's public access is set to `container`. The `container` public access setting permits users who visit the web page to view the thumbnails.