Update index.en.adoc

Author: andrewrodrigues

index.en.adoc

@@ -36,6 +36,8 @@ include::R_Data_Processing_Pipeline.en.adoc[]
 
 include::Ecological-Niche-Modelling.en.adoc[]
 
+include::Use_Case_ENM.en.adoc[]
+
 include::Red-List-Assessments.en.adoc[]
 
 include::Use_Case_Conservation_Status.en.adoc[]