doc: Improve description for upload-batch-size (#443)

Author: Paulo Ribeiro

README.md

@@ -205,7 +205,7 @@ Found [Clone] 7 duplicated lines with 10 tokens:
     * `--skip-commit-uuid-validation` [default: false] - Force using a commit UUID even if it doesn't belong to the current git branch.
     * `--skip-uncommitted-files-check` [default: false] - Skip check for uncommitted files in the analysis directory
     * `--upload` [default: false] - Request to push results to Codacy
-    * `--upload-batch-size` [default: 50000] - Batch size for upload of results
+    * `--upload-batch-size` [default: 50000] - Maximum number of results in each batch to upload to Codacy
     * `--skip-ssl-verification` [default: false] - Skip the SSL certificate verification when communicating with the Codacy API
     * `--parallel` [default: 2] - Number of tools to run in parallel
     * `--max-allowed-issues` [default: 0] - Maximum number of issues allowed for the analysis to succeed