Markdown became the default way developers write everything from README files to pull request descriptions to full product specs, for a simple reason: it looks almost like plain text already, so you can write fast without fighting a formatting toolbar, and it still renders into something clean and structured. But "technically valid Markdown" and "Markdown that's actually pleasant to read" are two different things, and the gap between them is mostly a handful of habits.
Use headings to create real structure, not just bold text
It's tempting to just bold a line to make it stand out: Setup Instructions. Don't —
use an actual heading instead: ## Setup Instructions. Real headings do something bold text
can't: they let tools generate a table of contents automatically, they let readers jump directly to a
section, and they establish a genuine document outline that both humans and tools (like search) can use to
navigate.
Don't skip heading levels
Going from # straight to ###, skipping ## entirely, breaks the logical
outline of the document even if it happens to look fine visually. Treat headings like an outline: #
for the document title (usually just one, at the very top), ## for major sections,
### for subsections within those, and so on — nesting one level at a time.
Prefer short paragraphs over dense walls of text
A paragraph that runs eight sentences without a break is hard to scan, even if every individual sentence is clear. Breaking related ideas into their own short paragraphs, or reaching for a bulleted list when you're genuinely enumerating discrete items, makes a document dramatically easier to skim — and skimming, not careful line-by-line reading, is how most people actually approach a README or a spec on first encounter.
Use bullet lists for items, numbered lists for sequences
This distinction is easy to get backwards. A numbered list implies order matters — step 1 happens before step 2, and reordering them would break something. Use it for genuine sequences: installation steps, a sequential process. For a list of features, requirements, or anything where order is incidental, a bulleted list is the more accurate signal, since it doesn't falsely imply that item 3 has to come after item 2.
Reach for code blocks, not just inline code, for anything multi-line
Inline code with single backticks (like this) is for short references — a variable name, a command, a filename. For anything spanning multiple lines, use a fenced code block with triple backticks, and include the language name for syntax highlighting:
```javascript
function greet(name) {
return `Hello, ${name}!`;
}
```That language tag isn't just decoration — most renderers use it to apply correct syntax highlighting, which measurably speeds up how quickly a reader can parse the code.
Write link text that describes the destination
Compare Click [here](/docs/setup) to see the setup guide against
See the [setup guide](/docs/setup). The second version is better for two concrete reasons:
someone scanning just the linked text (which many readers do) immediately knows where it goes, and screen
readers often let users tab through a page's links in isolation, where "here" repeated a dozen times across a
document is meaningless, but "setup guide" is genuinely informative on its own.
Use blockquotes for actual quotes or callouts, not for emphasis
A blockquote (> like this) signals "this is someone else's words" or "this is a distinct,
separate note from the main flow" — not just "this is important." Reaching for a blockquote purely to
visually highlight a sentence muddies its actual meaning; if you want emphasis, bold or italic text serves
that purpose more precisely.
Keep tables simple
Markdown tables get unreadable in raw source form fast if columns aren't roughly aligned, and they're a poor fit for content with long paragraphs inside cells. If a table's content is getting complex enough that the raw Markdown is hard to read even before rendering, that's usually a sign the content wants to be a bulleted list or a series of subsections instead.
A structural template that covers most documents
# Project Name
A one-line description of what this does.
## Installation
Step by step, in order.
## Usage
A basic example, then more advanced ones.
## Notes / Caveats
Anything the reader should watch out for.Not every document needs every section, but this shape — a short summary, then progressively more detail, organized under clear headings — covers the large majority of READMEs, specs, and technical docs without requiring much thought about structure each time.
Preview before you publish
Markdown's simplicity is also its risk: a missing blank line before a list, or a code fence that isn't closed properly, can silently break the rendering in ways that aren't obvious from the raw text. Always check the rendered output before sharing a document, especially anything with nested lists, code blocks, or tables.