Update documentation/asciidoc/computers/compute-module/introduction.adoc

Author: JeuneseRPi

documentation/asciidoc/computers/compute-module/introduction.adoc

@@ -69,7 +69,7 @@ The following table summarises Raspberry Pi Compute Modules in reverse chronolog
 
 |===
 
-NOTE: Compute Module 2 (CM2) isn't included in this documentation because it was never released publicly. Compute Module 1 (CM1) was officially followed by Compute Module 3 (CM3).
+NOTE: Compute Module 2 (CM2) was never released publicly. Compute Module 1 (CM1) was officially followed by Compute Module 3 (CM3).
 
 [[cm5]]
 === Compute Module 5