Update README.md

MEV_searchers/private_order_flows/README.md

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-### tl; dr
+### in this dir
+
+* [types of private order flows](101.md)
+* [projects addressing pof](projects.md)
 
 <br>
 
-<img width="759" src="https://user-images.githubusercontent.com/1130416/217937850-9b7e9434-ee72-4c2a-9e5e-ae9fe795310e.png">
-
-<br>
-
-
----
-
-### types of private order flows
-
-<br>
-
-#### rpc-based "payment for order flow protocols" (POFPs)
-
-* this type of private order flows can be realized by modifying either the user's rpc or by modifying the protocol's frontend
-* the rpc endpoint re-broadcasts (forwarding) the tx to nodes. 
-* in respect to every pending tx they receive, they can: 1) censor, 2) forward to some mempool, or 3) forward it directly to some block-builders or validators.
-
-<br>
-
-#### validator transaction reordering protocols (VTRPs)
-
-
-
-* private tx reordering
-* two goals: 1) identify valuable user txs, 2) replace the POFP's value-extracted tx with its own value-extractive tx
-* when a VTRP is able to identify a valuable user tx but, due to the tactics of the POFP, is unable to inject its own transaction in place of the POFP's -> VTRP's optimal strategy is to censor the user's transaction from the final block
-
-<br>
 
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 * [private order flow and the block builder market, by jon charbonneau](https://twitter.com/jon_charb/status/1562916372505665536)
 * [ethereum's biggest issue no one's talking about](https://mariusvanderwijden.github.io/blog/2022/10/21/lightclients/)
 * [private order flow is the new MEV (youtube)](https://www.youtube.com/watch?v=bapIqxhIdaY)
-* [kolibrio](https://www.kolibr.io/) (and [docs](https://docs.kolibr.io/))
+