Readme extended. Added excluded candidates without recording the factor.

README.md

@@ -40,6 +40,14 @@ The source code relays on selected functionality from the following packages:
 * [PeterO.Numbers](https://www.nuget.org/packages/PeterO.Numbers)
 * [xunit](https://www.nuget.org/packages/xunit)
 
+# Known factors
+The lists below will contain known factors identified by the scanner.
+* [138,000,001 - 139,000,000](/factors-138m.csv) - in progress
+
+# Excluded without factors
+The candidates below were excluded without recording the factor.
+* [138,000,001 - 139,000,000](/excluded-138m.csv)
+
 # Description
 
 This document explains **what the program does**, **how it works step-by-step**, and **why** each optimization exists. It reflects the *current* code paths in `Program.cs` and the helper library (`PerfectNumbers.Core`), describing only what the code actually does (comments ignored).