adjusted lambda for inter arrival time

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

note.md

@@ -1,6 +1,7 @@
-System Design
+# Age Caching Simulation
+
 Client -> TTL Cache -> Database
-Capacity C
+Capacity C (C = n (example: 100))
 
 TTL increases on cache hit
 Age of information / Age of the entry in the cache
@@ -18,7 +19,4 @@ lambda(i) is zipf distribution describing the rate the client requests the objec
 
 Inter arrival time of each object => exponential
 
-We need
-Hit rate and the average age of the object based on TTL and
-
-C = n (example: 100)
+Hit rate and the average age of the object based on TTL