Update docs/development.md

Co-authored-by: Sofia Stamouli <[email protected]>

Author: LouisLeNezet

docs/development.md

@@ -2,7 +2,7 @@
 
 ## Channel management and combination
 
-All channel need to be identified by a meta map. To follow which information is available the `meta` argument
+All channels need to be identified by a meta map. To follow which information is available, the `meta` argument
 is suffixed by a combination of the following capital letters:
 
 - I : individual id