fix grammar

Author: nedaKaighobadi

src/commands/createRules.ts

@@ -174,7 +174,7 @@ export const newRulesTemplate = (
         '"Propose fixes" means to both suggest and, if possible, automatically apply the fixes.',
         'You MUST NOT wait for the user to ask for analysis or remind you to run the tool.',
         'Do not run `codacy_cli_analyze` looking for changes in duplicated code or code complexity metrics.',
-        'Complexity metrics is different from complexity issues. When trying to fix complexity in a repository or file, focus on solving the complexity issues and ignore the complexity metric.',
+        'Complexity metrics are different from complexity issues. When trying to fix complexity in a repository or file, focus on solving the complexity issues and ignore the complexity metric.',
         'Do not run `codacy_cli_analyze` looking for changes in code coverage.',
         'Do not try to manually install Codacy CLI using either brew, npm, npx, or any other package manager.',
         "If the Codacy CLI is not installed, just run the `codacy_cli_analyze` tool from Codacy's MCP Server.",