Markdown
Markdown (noun) means a lightweight way of formatting plain text using ordinary keyboard characters, so that asterisks around a word make it bold, a hash at the start of a line makes it a heading, and so on. The file stays readable as it is, and software can turn it into formatted output such as a web page. Example: “The README is written in Markdown.”
How to use Markdown
Learner’s notesIn plain EnglishA simple way of typing formatting, like putting stars round a word to make it bold.
Capitalised as Markdown when naming the format. The retail sense is an ordinary lower-case noun and unrelated in meaning.
Note the deliberate joke in the name: markup goes up, Markdown goes down.
Trace the full origin ↓Fill the gap
Can you complete this real example?
The README is written in _____.
Etymology
Named by John Gruber in 2004 as a play on markup, the general term for adding formatting instructions to plain text.