Apply suggestions from code review

Co-authored-by: James A. Fellows Yates <jfy133@gmail.com>

CHANGELOG.md

@@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### `Added`
 
-- [#276](https://github.com/nf-core/taxprofiler/pull/276) Implemented batching in the KrakenUniq samples processing.
+- [#276](https://github.com/nf-core/taxprofiler/pull/276) Implemented batching in the KrakenUniq samples processing. (added by @Midnighter)
 - [#272](https://github.com/nf-core/taxprofiler/pull/272) - Add saving of final 'analysis-ready-reads' to dedicated directory. (❤️ to @alexhbnr for reporting, added by @jfy133)
 
 ### `Fixed`

nextflow_schema.json

@@ -436,8 +436,8 @@
                     "type": "integer",
                     "default": 20,
                     "fa_icon": "far fa-window-restore",
-                    "description": "Set the batch size for KrakenUniq",
-                    "help_text": "Specify the batch size for KrakenUniq. The reference database for KrakenUniq is loaded into memory once in a process and then used to classify many samples. This parameter determines for how many samples at a time."
+                    "description": "Specify the number samples for each KrakenUniq run",
+                    "help_text": "Specify the batch size for KrakenUniq. The reference database for KrakenUniq is loaded into memory once in a process and then used to classify many samples. When you have many samples, a single KrakenUniq run can be rather slow. Alternatively, we can split up KrakenUniq runs for a 'batch' of samples, allowing a balance between shared using a database for multiple samples, but also faster parallelised KrakenUniq runs. This parameter determines for how many samples at a time."
                 },
                 "run_bracken": {
                     "type": "boolean",