a typo and two (guessed) completions (#1325)

Author: espinielli

README.md

@@ -98,7 +98,7 @@ The default **width** is 640. On Observable, the width can be set to the [standa
 
 The **aspectRatio** option, if not null, computes a default **height** such that a variation of one unit in the *x* dimension is represented by the corresponding number of pixels as a variation in the *y* dimension of one unit. Note: when using facets, set the *fx* and *fy* scales’ **round** option to false if you need an exact aspect ratio.
 
-The **style** option allows custom styles to override Plot’s defaults. It may be specified either as a string of inline styles (*e.g.*, `"color: red;"`, in the same fashion as assigning [*element*.style](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/style)) or an object of properties (*e.g.*, `{color: "red"}`, in the same fashion as assigning [*element*.style properties](https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleDeclaration)). Note that unitless numbers ([quirky lengths](https://www.w3.org/TR/css-values-4/#deprecated-quirky-length)) such as `{padding: 20}` may not supported by some browsers; you should instead specify a string with units such as `{padding: "20px"}`. By default, the returned plot has a white background, a max-width of 100%, and the system-ui font. Plot’s marks and axes default to [currentColor](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#currentcolor_keyword), meaning that they will inherit the surrounding content’s color. For example, a dark theme:
+The **style** option allows custom styles to override Plot’s defaults. It may be specified either as a string of inline styles (*e.g.*, `"color: red;"`, in the same fashion as assigning [*element*.style](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/style)) or an object of properties (*e.g.*, `{color: "red"}`, in the same fashion as assigning [*element*.style properties](https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleDeclaration)). Note that unitless numbers ([quirky lengths](https://www.w3.org/TR/css-values-4/#deprecated-quirky-length)) such as `{padding: 20}` may not be supported by some browsers; you should instead specify a string with units such as `{padding: "20px"}`. By default, the returned plot has a white background, a max-width of 100%, and the system-ui font. Plot’s marks and axes default to [currentColor](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#currentcolor_keyword), meaning that they will inherit the surrounding content’s color. For example, a dark theme:
 
 ```js
 Plot.plot({
@@ -893,7 +893,7 @@ In addition to the [standard mark options](#marks), the following optional chann
 
 If **x2** is not specified, it defaults to **x1**. If **y2** is not specified, it defaults to **y1**. These defaults facilitate sharing *x* or *y* coordinates between the baseline and topline. See also the implicit stack transform and shorthand **x** and **y** options supported by [Plot.areaY](#plotareaydata-options) and [Plot.areaX](#plotareaxdata-options).
 
-By default, the data is assumed to represent a single series (a single value that varies over time, *e.g.*). If the **z** channel is specified, data is grouped by *z* to form separate series. Typically *z* is a categorical value such as a series name. If **z** is not specified, it defaults to **fill** if a channel, or **stroke** if a channel.
+By default, the data is assumed to represent a single series (*i.e.*, a single value that varies over time). If the **z** channel is specified, data is grouped by *z* to form separate series. Typically *z* is a categorical value such as a series name. If **z** is not specified, it defaults to **fill** if a channel, or **stroke** if a channel.
 
 The **stroke** defaults to none. The **fill** defaults to currentColor if the stroke is none, and to none otherwise. If the fill is defined as a channel, the area will be broken into contiguous overlapping segments when the fill color changes; the fill color will apply to the interval spanning the current data point and the following data point. This behavior also applies to the **fillOpacity**, **stroke**, **strokeOpacity**, **strokeWidth**, **opacity**, **href**, **title**, and **ariaLabel** channels. When any of these channels are used, setting an explicit **z** channel (possibly to null) is strongly recommended. The **strokeLinecap** and **strokeLinejoin** default to *round*, and the **strokeMiterlimit** defaults to 1.