update ide-check help text (#9559)

# Description

Updates `--ide-check` help

## Before

run a diagnostic check on the given source

## After

run a diagnostic check on the given source and limit number of errors
returned to provided number

# User-Facing Changes
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# Tests + Formatting
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> from `nushell` you can also use the `toolkit` as follows
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# After Submitting
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src/command.rs

@@ -319,7 +319,7 @@ impl Command for Nu {
             .named(
                 "ide-check",
                 SyntaxShape::Int,
-                "run a diagnostic check on the given source",
+                "run a diagnostic check on the given source and limit number of errors returned to provided number",
                 None,
             )
             .switch("ide-ast", "generate the ast on the given source", None);