fix(collections): 🐛 data search, ajustes no texto

Author: rcmoutinho

book/08-java-collections/sections/03-data-search.asc

@@ -41,6 +41,7 @@ allMatch: false
 noneMatch: false
 ----
 
+.Referências
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 * Using Streams
@@ -49,4 +50,4 @@ Boyarsky, Jeanne; Selikoff, Scott. OCP: Oracle Certified Professional Java SE 8
 
 * https://www.baeldung.com/java-8-streams[The Java 8 Stream API Tutorial.]
 
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