This can be copied from the App Studio Portal, at the document level, see example below:
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h2. Where <issue-id>, <page-id> and <article-id> are the values available from the issue JSON from within an issue on App Studio.
h2. How to access the issue JSON and obtain the issue-id and page-id
Add this on the to end of the URL of the publication you are in: /issueJson
h2. Where to find the article-id
To obtain the article-id, please [click here|http://docs.appstudio.net/display/AppStudio/Page+linking+%28hyperlink%29]
*Note:* Your scheme name should be all one word, begin with a letter and use only letters and numbers.
*Note:* You should try to ensure your scheme name is unique so that it doesn’t clash with other 3rd party Apps. You might do this by prefixing it with your company name, e.g. docsignmyshceme://…