Add web request exercise

slides/2023/02_http/index.html

@@ -27,6 +27,25 @@
 
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+# The Life Cycle of a Web Request
+
+Prompt: What things (e.g. events, protocols, actions) (might) occur when someone types https://www.reddit.com in their web browser and press return?
+
+Part 1: ~10 minutes
+
+- Type those things into the google doc "The life cycle of a web request" in google drive on cs291.com (under Class Resource on the left bar).
+
+- Include your first or preferred name you submitted in intro survey, e.g.
+  - Shea: User types in https://www.reddit.com.
+
+Part 2: ~10 minutes
+
+- We'll discuss these items in group setting.
+
+- Be ready to explain your item (no pressure, your answer is not scored)
+
+---
+
 # Two Endpoints
 
 A __web browser__ is a process (at least one) that runs on an operating system.