Fix changelog convention=>conventions

CHANGELOG.md

@@ -38,8 +38,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Changed the naming convention for the split name(s): we now take the entries from the field alias(es) without appending any digits. Also allowing the user to specify more entries in the alias, so that HISTORY.rc does not need to change when running GOCART with more wavelengths
 - A small performance improvement. cycle => exit in MAPL_Generic.F90
 - Made history global metadata configurable. This can be done in two ways
-  1. Globally for all collections by setting `COMMENT:`, `CONTACT:`, `CONVENTION:`, `INSTITUTION:`, `REFERENCES:`, and `SOURCE:` at the top of `HISTORY.rc` like `EXPDSC:`
-  2. On a per-collection bases by setting `collection.comment:`, `collection.contact:`, `collection.convention:`, `collection.institution:`, `collection.references:`, and `collection.source:`
+  1. Globally for all collections by setting `COMMENT:`, `CONTACT:`, `CONVENTIONS:`, `INSTITUTION:`, `REFERENCES:`, and `SOURCE:` at the top of `HISTORY.rc` like `EXPDSC:`
+  2. On a per-collection bases by setting `collection.comment:`, `collection.contact:`, `collection.conventions:`, `collection.institution:`, `collection.references:`, and `collection.source:`
   - The default settings for these are to match that of MAPL 2.17.0
 - Updated `components.yaml`. These changes are to support using Spack to build MAPL
   - ESMA_cmake v3.10.0 (add `FindESMF.cmake` from NOAA-EMC)