docs: Prepare for new sub tree

See #11925

docs/content/en/methods/page/ReadingTime.md

@@ -1,49 +0,0 @@
----
-title: ReadingTime
-description: Returns the estimated reading time, in minutes, for the given page.
-categories: []
-keywords: []
-action:
-  related:
-    - methods/page/WordCount
-    - methods/page/FuzzyWordCount
-  returnType: int
-  signatures: [PAGE.ReadingTime]
----
-
-The estimated reading time is calculated by dividing the number of words in the content by the reading speed.
-
-By default, Hugo assumes a reading speed of 212 words per minute. For CJK languages, it assumes 500 words per minute.
-
-```go-html-template
-{{ printf "Estimated reading time: %d minutes" .ReadingTime }}
-```
-
-Reading speed varies by language. Create language-specific estimated reading times on your multilingual site using site parameters.
-
-{{< code-toggle file=hugo >}}
-[languages]
-  [languages.de]
-    contentDir = 'content/de'
-    languageCode = 'de-DE'
-    languageName = 'Deutsch'
-    weight = 2
-    [languages.de.params]
-    reading_speed = 179
-  [languages.en]
-    contentDir = 'content/en'
-    languageCode = 'en-US'
-    languageName = 'English'
-    weight = 1
-    [languages.en.params]
-      reading_speed = 228
-{{< /code-toggle >}}
-
-Then in your template:
-
-```go-html-template
-{{ $readingTime := div (float .WordCount) .Site.Params.reading_speed }}
-{{ $readingTime = math.Ceil $readingTime }}
-```
-
-We cast the `.WordCount` to a float to obtain a float when we divide by the reading speed. Then round up to the nearest integer.