Update README.md

README.md

@@ -28,11 +28,7 @@ During the scraping procedure (performed on April 2023) some information like te
 
 Given the text formatting used by many users, complete and thorough conversion to Markdown seems very difficult without losing information in the process or causing formatting problems.
 
-Note that messages in older threads (low `thread-id`) were in general shorter and more casually written than those in newer ones. This might be due to a slow shift over time in the userbase and/or self-selection due to access requirements.
-
-![Median message length trend](https://files.catbox.moe/xzplhv.png)
-
-# Basic usage
+# Basic dataset usage
 The files need PyArrow installed from `pip` to be loaded with `pandas`. FastParquet will not work properly due to the nested data structure.
 
 ```python
@@ -102,6 +98,13 @@ Name: 2350, dtype: object
 | from-alternative | Alternative, locally-unique name for the user in the form of `User0` ... `UserN`
 | timestamp | ISO UTC message timestamp
 
+# Message length analysis
+Messages in older threads were in general shorter and more casually written than those in newer ones. This might be due to a slow shift over time in the userbase and/or self-selection due to access requirements.
+
+![Median message length trend over time](https://files.catbox.moe/ogctt3.png)
+
+![Median message length vs dataset fraction](https://files.catbox.moe/0ya6jd.png) 
+
 # Cleaning procedure details
 ## At the HTML element level
 - Simplified blockquotes