[WIP] Add post for socratic 102

[btsea]

Do not merge.

@jnewbery @andrerfneves @btsea Topics by tomorrow at 3PM please!

[andrerfneves]

Going to add them to the commit itself tomorrow, but here are some of the links I'm adding:

• Casa now supports Coldcard - https://mailchi.mp/6498a009e855/casa-intelligence-briefing-12-2586144?e=2b14ce1003
• LND will soon support channel-opening from PSBT (Coldcard et al) - https://twitter.com/gugol/status/1230174143368323072
• Chaincode Residencies - https://residency.chaincode.com/
• v1.2 Phoenix release - https://twitter.com/PhoenixWallet/status/1230798255627407361
• Circular rebalance on new RTL release - https://github.com/Ride-The-Lightning/RTL/releases/tag/v0.6.5
• Allowing nodes to advertise Wumboness - Single-option large channel proposal lightning/bolts#596
• CKBunker - https://ckbunker.com/
• C-Lightning refactor to allow other bitcoin backends other than Bitcoin Core - Bitcoin backend generalization ElementsProject/lightning#3488
• LND PR to abstract database store access to allow different databases - channeldb/kvdb: introduce new KV-store database abstraction  lightningnetwork/lnd#3833
• LND forwarding HTLCs changes - Intercept forward htlc lightningnetwork/lnd#4018
• LND adds fundall to the openchannel call - adds fundmax flag to openchannel lightningnetwork/lnd#4029
• Zeus v0.2.1 https://github.com/ZeusLN/zeus/releases/tag/v0.2.1
• C-Lightning v0.8.1 https://github.com/ElementsProject/lightning/releases/tag/v0.8.1
• ZEBEDEE SDK & Dashboard for LN-powered Games - https://medium.com/zebedee-engineering/announcing-the-zebedee-developer-dashboard-unity-sdk-4598c394cc23

[jnewbery]

Pushed my links. I'm happy to cover everything in the mailing list posts and PRs.

Minor note: @btsea - it's best not to include @username in the commit log since github then notifies you every time that branch gets changed. I've removed the usernames from your first commit.