Use title case for proper names, e.g. Python, C#, WebSocket, GitHub. Among the notable exceptions are macOS, q and kdb+.

Also use title case for the names of panels, tabs and dialogs in a UI, e.g. Dashboard Manager, Connection Editor.

The language is q. The database, process and product are all known as kdb+. Although both are proper names they are both set in lower case, except where they begin sentences or headings.


Set headings in sentence case, i.e., in lower case except for

  • the first letter
  • acronyms, e.g. IPC, HTTP, API
  • proper names, e.g. Python, C#, WebSocket, GitHub, macOS

Apply inline code style where appropriate.

Use hash characters, not underlines, to mark H1s and H2s. (Underlines break the site indexing script.)

Minimize punctuation within a heading and end it without punctuation.

Number headings in an article only when there are many references in the text to the numbers. Where there are a few references to heading numbers, replace them with the italicized heading texts, linked to the headings.

Ordered and unordered lists

Use numbered lists only

  • where it is necessary to refer to a list item, e.g. “as in (3) above”
  • where the order is significant, e.g. in a sequence of instructions


  • a list has no more than five items;
  • the items are short; and
  • its items are clauses of a single sentence

suffix all but the last item with a semicolon, and use "and" or "or" before the last item if desired, as in this sentence. Otherwise, leave the ends of list items unpunctuated.


Use admonitions for warnings, tips and notes. Use them sparingly.


This shows how it’s done.

In the Markdown source, the admonition above looks like this:

!!! note "Example"

    This shows how it’s done.


Make column headers lower case, except for proper names and code objects.

Prefer text code blocks for tables with many columns or columns that do not need to be wrapped. E.g.

label          symbol
errorClass     symbol
description    string
problemText    string
errorMessage   string
startLine      long
endLine        long
startIndex     long
endIndex       long