doc,readline: use code markup/markdown in headers

PR-URL: #31086
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>

Author: Trott

doc/api/readline.md

@@ -34,7 +34,7 @@ Once this code is invoked, the Node.js application will not terminate until the
 `readline.Interface` is closed because the interface waits for data to be
 received on the `input` stream.
 
-## Class: Interface
+## Class: `Interface`
 <!-- YAML
 added: v0.1.104
 -->
@@ -47,7 +47,7 @@ single `input` [Readable][] stream and a single `output` [Writable][] stream.
 The `output` stream is used to print prompts for user input that arrives on,
 and is read from, the `input` stream.
 
-### Event: 'close'
+### Event: `'close'`
 <!-- YAML
 added: v0.1.98
 -->
@@ -66,7 +66,7 @@ The listener function is called without passing any arguments.
 The `readline.Interface` instance is finished once the `'close'` event is
 emitted.
 
-### Event: 'line'
+### Event: `'line'`
 <!-- YAML
 added: v0.1.98
 -->
@@ -84,7 +84,7 @@ rl.on('line', (input) => {
 });
 ```
 
-### Event: 'pause'
+### Event: `'pause'`
 <!-- YAML
 added: v0.7.5
 -->
@@ -103,7 +103,7 @@ rl.on('pause', () => {
 });
 ```
 
-### Event: 'resume'
+### Event: `'resume'`
 <!-- YAML
 added: v0.7.5
 -->
@@ -118,7 +118,7 @@ rl.on('resume', () => {
 });
 ```
 
-### Event: 'SIGCONT'
+### Event: `'SIGCONT'`
 <!-- YAML
 added: v0.7.5
 -->
@@ -141,7 +141,7 @@ rl.on('SIGCONT', () => {
 
 The `'SIGCONT'` event is _not_ supported on Windows.
 
-### Event: 'SIGINT'
+### Event: `'SIGINT'`
 <!-- YAML
 added: v0.3.0
 -->
@@ -161,7 +161,7 @@ rl.on('SIGINT', () => {
 });
 ```
 
-### Event: 'SIGTSTP'
+### Event: `'SIGTSTP'`
 <!-- YAML
 added: v0.7.5
 -->
@@ -189,7 +189,7 @@ rl.on('SIGTSTP', () => {
 
 The `'SIGTSTP'` event is _not_ supported on Windows.
 
-### rl.close()
+### `rl.close()`
 <!-- YAML
 added: v0.1.98
 -->
@@ -201,7 +201,7 @@ the `'close'` event will be emitted.
 Calling `rl.close()` does not immediately stop other events (including `'line'`)
 from being emitted by the `readline.Interface` instance.
 
-### rl.pause()
+### `rl.pause()`
 <!-- YAML
 added: v0.3.4
 -->
@@ -212,7 +212,7 @@ later if necessary.
 Calling `rl.pause()` does not immediately pause other events (including
 `'line'`) from being emitted by the `readline.Interface` instance.
 
-### rl.prompt(\[preserveCursor\])
+### `rl.prompt([preserveCursor])`
 <!-- YAML
 added: v0.1.98
 -->
@@ -230,7 +230,7 @@ paused.
 If the `readline.Interface` was created with `output` set to `null` or
 `undefined` the prompt is not written.
 
-### rl.question(query, callback)
+### `rl.question(query, callback)`
 <!-- YAML
 added: v0.3.3
 -->
@@ -262,14 +262,14 @@ The `callback` function passed to `rl.question()` does not follow the typical
 pattern of accepting an `Error` object or `null` as the first argument.
 The `callback` is called with the provided answer as the only argument.
 
-### rl.resume()
+### `rl.resume()`
 <!-- YAML
 added: v0.3.4
 -->
 
 The `rl.resume()` method resumes the `input` stream if it has been paused.
 
-### rl.setPrompt(prompt)
+### `rl.setPrompt(prompt)`
 <!-- YAML
 added: v0.1.98
 -->
@@ -279,7 +279,7 @@ added: v0.1.98
 The `rl.setPrompt()` method sets the prompt that will be written to `output`
 whenever `rl.prompt()` is called.
 
-### rl.write(data\[, key\])
+### `rl.write(data[, key])`
 <!-- YAML
 added: v0.1.98
 -->
@@ -312,7 +312,7 @@ rl.write(null, { ctrl: true, name: 'u' });
 The `rl.write()` method will write the data to the `readline` `Interface`'s
 `input` *as if it were provided by the user*.
 
-### rl\[Symbol.asyncIterator\]()
+### `rl[Symbol.asyncIterator]()`
 <!-- YAML
 added: v11.4.0
 changes:
@@ -349,7 +349,7 @@ async function processLineByLine() {
 }
 ```
 
-### rl.line
+### `rl.line`
 <!-- YAML
 added: 0.1.98
 -->
@@ -384,7 +384,7 @@ process.stdin.on('keypress', (c, k) => {
 });
 ```
 
-### rl.cursor
+### `rl.cursor`
 <!-- YAML
 added: 0.1.98
 -->
@@ -398,7 +398,7 @@ reading input from a TTY stream.  The position of cursor determines the
 portion of the input string that will be modified as input is processed,
 as well as the column where the terminal caret will be rendered.
 
-### rl.getCursorPos()
+### `rl.getCursorPos()`
 <!-- YAML
 added: v13.5.0
 -->
@@ -411,7 +411,7 @@ Returns the real position of the cursor in relation to the input
 prompt + string.  Long input (wrapping) strings, as well as multiple
 line prompts are included in the calculations.
 
-## readline.clearLine(stream, dir\[, callback\])
+## `readline.clearLine(stream, dir[, callback])`
 <!-- YAML
 added: v0.7.7
 changes:
@@ -433,7 +433,7 @@ changes:
 The `readline.clearLine()` method clears current line of given [TTY][] stream
 in a specified direction identified by `dir`.
 
-## readline.clearScreenDown(stream\[, callback\])
+## `readline.clearScreenDown(stream[, callback])`
 <!-- YAML
 added: v0.7.7
 changes:
@@ -451,7 +451,7 @@ changes:
 The `readline.clearScreenDown()` method clears the given [TTY][] stream from
 the current position of the cursor down.
 
-## readline.createInterface(options)
+## `readline.createInterface(options)`
 <!-- YAML
 added: v0.1.98
 changes:
@@ -552,7 +552,7 @@ function completer(linePartial, callback) {
 }
 ```
 
-## readline.cursorTo(stream, x\[, y\]\[, callback\])
+## `readline.cursorTo(stream, x[, y][, callback])`
 <!-- YAML
 added: v0.7.7
 changes:
@@ -572,7 +572,7 @@ changes:
 The `readline.cursorTo()` method moves cursor to the specified position in a
 given [TTY][] `stream`.
 
-## readline.emitKeypressEvents(stream\[, interface\])
+## `readline.emitKeypressEvents(stream[, interface])`
 <!-- YAML
 added: v0.7.7
 -->
@@ -598,7 +598,7 @@ if (process.stdin.isTTY)
   process.stdin.setRawMode(true);
 ```
 
-## readline.moveCursor(stream, dx, dy\[, callback\])
+## `readline.moveCursor(stream, dx, dy[, callback])`
 <!-- YAML
 added: v0.7.7
 changes: