More plurals

spec/src/main/asciidoc/ELSpec.adoc

diff --git a/spec/src/main/asciidoc/ELSpec.adoc b/spec/src/main/asciidoc/ELSpec.adoc
index c8baf92..d73a0c2 100644
--- a/spec/src/main/asciidoc/ELSpec.adoc
+++ b/spec/src/main/asciidoc/ELSpec.adoc
@@ -2274,7 +2274,7 @@
 
 === Collection Operations
 
-==== Stream and Pipeline
+==== Streams and Pipelines
 
 The operations on a collection object are
 realized as method calls to the stream of elements derived from the