Page History
While you are editing the wiki, you may want to To insert an image or file that is not yet stored in the wiki. If the file exists already, you can add an external link. In AirSend, you can upload or create a file and save it in the wiki without having to leave the wiki editor.
The left panel of the wiki editor shows the files and images that are already uploaded to the channel as well as buttons for uploading a file and creating a file or folder. 
The original file for the wiki, index.md, is listed with the other files in the channel. The .md extension indicates that it is a Markdown file, a plain text file that may include Markdown formatting. It remains the first page of the wiki if you add additional pages.
link into a page in a wiki, you must first upload the file or image to the wiki. You can also upload a folder and its contents to the wiki.
To upload a file or folder into the wiki
...
| title | Uploading files into a channel during wiki editing |
|---|
...
:
...
- Drag and drop a file or folder onto the Files panel
...
- , or click the Upload a file button and upload a file or folder.
...
The file or folder appears in the Files panel:
...
| Expand | ||
|---|---|---|
| ||
To create a new markdown file:
|
...
| title | Adding a folder to your channel during wiki editing |
|---|
To add an uploaded image file to a page in the wiki, see Adding an image to a wiki page.
To add a link to an uploaded file to a page in the wiki, see Adding a link to a file in a wiki page.
AirSend lets you create new folders as well as new files during wiki editing so you can store the files in an organized manner.
To create a new folder:
...
Overview
Content Tools
Apps