Add a Getting Project Context in CONTRIBUTING.md

Author: Antoine Riard

CONTRIBUTING.md

@@ -43,6 +43,17 @@ a "soft" commitment.
 If you're eager to increase the velocity of the dev process, reviewing other contributors work is
 the best you can do while waiting review on yours.
 
+Getting Project Context
+-----------------------
+
+Browsing through the [meeting minutes](https://github.com/rust-bitcoin/rust-lightning/wiki/Meetings)
+is a good first step. You will learn who is working on what, how releases are drafed, what are the
+pending tasks to deliver, where you can contribute review bandwidth, ...
+
+A secondary step might to watch this talk on the LDK project (TODO: Val's Advancing Bitcoin).
+
+Also, getting familiar with the [glossary](GLOSSARY.md) will fasten discussions with regular contributors.
+
 Contribution Workflow
 ---------------------