Update chapter5.md

Fix a typo
yangmain · Dec 17, 2019 · 399f33e · 399f33e
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commit 399f33e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/chapter5.md b/chapter5.md
@@ -2,7 +2,7 @@
 =====================
 
 Our server is working, but being reliant on another server to actually perform
-the lookup is annoying and less than useful. Now is a good time to dwelve into
+the lookup is annoying and less than useful. Now is a good time to delve into
 the details of how a name is really resolved.
 
 Assuming that no information is known since before, the question is first