Update of Readme and documentation (#2514)

* Big readme update

* Readme and documentation update

* Readme structure update

* Small fixes

* Changelog update

docs/source/philosophy.rst

@@ -3,6 +3,10 @@
 Philosophy
 ==========
 
+    *The Commissioner Jules Maigret is a fictional French police detective, created by Georges Simenon.
+    His investigation method is based on understanding the personality of different people and their
+    interactions.*
+
 TL;DR: Username => Dossier
 
 Maigret is designed to gather all the available information about person by his username.
@@ -15,3 +19,23 @@ All this information forms some dossier, but it also useful for other tools and
 Each collected piece of data has a label of a certain format (for example, ``follower_count`` for the number
 of subscribers or ``created_at`` for account creation time) so that it can be parsed and analyzed by various
 systems and stored in databases.
+
+Origins
+-------
+
+Maigret started from studying what OSINT investigators actually use in practice — and from
+the realization that many popular tools do not deliver real investigative value. The original
+research behind this observation is summarized in the article
+`What's wrong with namecheckers <https://soxoj.medium.com/whats-wrong-with-namecheckers-981e5cba600e>`_.
+For a broader landscape of username-checking tools, see the curated
+`OSINT namecheckers list <https://github.com/soxoj/osint-namecheckers-list>`_.
+
+Two ideas grew out of that research:
+
+- `socid-extractor <https://github.com/soxoj/socid-extractor>`_ — a library focused on pulling
+  structured identity data (user IDs, full names, linked accounts, bios, timestamps, etc.) out of
+  account pages and public API responses, so that finding an account is not the end of the pipeline.
+- **Maigret** itself — which started as a fork of
+  `Sherlock <https://github.com/sherlock-project/sherlock>`_ but has long since outgrown the
+  original project in coverage, extraction depth, and check reliability. Today Maigret is used
+  as a component by major OSINT vendors in their commercial products.