Added few extra topics (#48)

* Added few extra topics

@renepickhardt  Nice work on the outline. Here are the changes that I have done. Would appreciate your feedback. I have added a couple of topics like `nLocktime`, `CLTV`, `CSV`, and `nSequence` to the "Review of Bitcoin" section as I feel they form the foundation of the transactions in Lightning Network. Also, I have added the topic "Need for a payment receipt" in the "Motivation of Lightning Network" section as invoice payments gives us a cryptographic proof of payment that is generally lacking in a normal on-chain transaction. 

I changed the name of `Breach Remedy Transaction` to `Penalty transaction` as the BRT term does not appear anywhere outside Joseph Poon's whitepaper. I think you should also rethink the RSMC term as that term also does not appear in the BOLTs and outside the whitepaper.

I think it would be worthwhile to add scriptless scripts and benefits Taproot can provide to Lightning Network in BOLT 1.1 /2.0 section. With Taproot, we would be able to do wonderful things with Lightning onion and as the book gets published in 2H20, we would be might be much closer to Taproot implementation on mainchain.

* Update topics.asciidoc

* Update topics.asciidoc

* Update topics.asciidoc

topics.asciidoc

@@ -27,6 +27,7 @@ Review of some mechanics and terms from Mastering Bitcoin. This would probably b
 * fees
 * hash
 * Hash Function
+* Locktime and CLTV
 * multisignature
 * output
 * P2PKH
@@ -36,6 +37,7 @@ Review of some mechanics and terms from Mastering Bitcoin. This would probably b
 * P2WSH
 * Proof-of-Work
 * RIPEMD-160
+* Sequence and CSV
 * Script
 * ScriptPubKey (aka pubkey script)
 * ScriptSig (aka signature script)
@@ -106,7 +108,7 @@ While also important for end users to be aware of some of the topics here it is
 A summary of how the Lightning Network protocol works.
 
 * BOLT
-* Breach Remedy Transaction
+* Penalty Transaction
 * Closing Transaction
 * Commitment Transaction
 * Contract
@@ -145,6 +147,7 @@ Future trends and developments on the Lightning Network.
 ** multiparty channels
 ** Channel Factories
 * multipath Payments
+* scriptless scripts
 * splicing
 * watchtowers
 * wumbo