Update docs/nf_develop/1_04_parameters.md

Co-authored-by: Maxime U Garcia <[email protected]>

Author: christopher-hakkaart

docs/nf_develop/1_04_parameters.md

@@ -131,7 +131,7 @@ Once you have made your edits you can click `Finished` and all changes will be a
 
 !!! question "Exercise"
 
-    Execute the `nf-core pipelines schema build` commanddd to update your schema.
+    Execute the `nf-core pipelines schema build` command to update your schema.
 
     ```console
     cd /workspace/gitpod/nf-develop/myorg-mypipeline