Transform experience - remove some sample files from screenshot, minor update to bring-your-own-file step (#786)

Author: Paul-Cornell

img/ui/single-file/welcome.png

@@ -53,7 +53,7 @@ If the workflow editor is not yet visible, do the following to show it:
 3. In the **Welcome** area, do one of the following:
 
    - Click one of the sample files, such as **realestate.pdf**, to have Unstructured parse and transform that sample file.
-   - Click **Browse files**, and then browse to and select one of your own files, to have Unstructured parse and transform it.
+   - Click **Browse files**, or drag and drop a file onto **Drop file to test**, to have Unstructured parse and transform your own file.
 
      <Note>
          If you choose to use your own file, the file must be 10 MB or less in size.

snippets/general-shared-text/get-started-single-file-ui-part-2.mdx

@@ -20,7 +20,7 @@ Do the following:
 2. In the **Welcome** area, do one of the following:
 
    - Click one of the sample files, such as **realestate.pdf**, to have Unstructured parse and transform that sample file.
-   - Click **Browse files**, and then browse to and select one of your own files, to have Unstructured parse and transform it.
+   - Click **Browse files**, or drag and drop a file onto **Drop file to test**, to have Unstructured parse and transform your own file.
 
      If you choose to use your own file, the file must be 10 MB or less in size. Also, the file must one of the following supported file types: