CLDR-17447 Fix parentLocales documentation (#3592)

Co-authored-by: Steven R. Loomis <[email protected]>

docs/ldml/tr35.md

@@ -1763,16 +1763,20 @@ _Examples:_
 
 ```xml
 <!ELEMENT parentLocales ( parentLocale* ) >
-<!ATTLIST parentLocales component NMTOKEN #IMPLIED >
+<!ATTLIST parentLocales component NMTOKENS #IMPLIED >
 <!ELEMENT parentLocale EMPTY >
 <!ATTLIST parentLocale parent NMTOKEN #REQUIRED >
+<!ATTLIST parentLocale localeRules NMTOKENS #IMPLIED >
 <!ATTLIST parentLocale locales NMTOKENS #REQUIRED >
 ```
 
 When the component does not occur, that is referred to as the ‘main’ component.
-Otherwise the component value typically corresponds to an element and its children, such as ‘collations’ or ‘plurals’.
+Otherwise the component value typically corresponds to elements and their children, such as ‘collations’ or ‘plurals’.
+There may be more than one component value (space separated):
+in that case the information applies to all the components listed.
 
-The basic inheritance model for locales of the form `lang_script_region_variant1_…variantN` is to truncate from the end. That is,
+The basic inheritance model for locales of the form `lang_script_region_variant1_…variantN` is to truncate from the end.
+That is,
 remove the _u and _t extensions, then remove the last _ and following tag, then restore the extensions.
 
 For example
@@ -1796,7 +1800,8 @@ Thus there are two cases where the truncation inheritance needs to be overridden
 The `parentLocale` element is used to override the normal inheritance when accessing CLDR data.
 
 For case 1, there is a special attribute and value, `localeRules="nonlikelyScript"`,
-which specifies **all locales** of the form `lang_script`, wherever the `script` is **not** the likely script for `lang`.
+which specifies **all locales** of the form `lang_script`,
+wherever the `script` is **not** the likely script for `lang`.
 For migration, the previous short list of locales (a subset of the nonlikelyScript locales) is retained,
 but those locales are slated for removal in the future.
 For example, `ru_Latn` is not included in the short list but is included (programmatically) in the rule.
@@ -1809,17 +1814,20 @@ The `localeRules` is used for the main component, for example.
 It is not used to components where text is not mixed,
 such as the collations component or the plurals component.
 
-For case 2, the children and parent share the same primary language, but the region is changed. For example:
+For case 2, the children and parent share the same primary language, but the region is changed.
+For example:
 
 ```xml
 <parentLocale parent="es_419" locales="es_AR es_BO … es_UY es_VE"/>
 ```
 
 There are certain components that require addenda to the common parent fallback rules.
-For a locale like `zh_Hant` in the example above, the `parentLocale` element would dictate the parent as `root` when referring to main locale data,
+For a locale like `zh_Hant` in the example above,
+the `parentLocale` element would dictate the parent as `root` when referring to main locale data,
 but for collation data, the parent locale should still be `zh`,
 even though the `parentLocale` element is present for that locale.
-To address this, components can have their own fallback rules that inherit from the common rules and add additional parents that supplement or override the common rules:
+To address this, components can have their own fallback rules that inherit from the common rules
+and add additional parents that supplement or override the common rules:
 
 ```xml
 <parentLocales component="segmentations">
@@ -1828,7 +1836,8 @@ To address this, components can have their own fallback rules that inherit from
 ```
 
 Note: When components were first introduced, the component-specific parent locales were be merged with the main parent locales.
-This was determined to be an error, and the component-specific parent locales are now not merged, but are treated as stand-alone.
+This was determined to be an error, and the component-specific parent locales are now not merged,
+but instead are treated as stand-alone.
 
 Since parentLocale information is not localizable on a per locale basis,
 the parentLocale information is contained in CLDR’s [supplemental data.](tr35-info.md)