[ty] Remove extra headings and split examples in the `overrides` configuration docs (#21994)

Having these as markdown headings ends up being weird in the reference
documentation, e.g., before:

<img width="1071" height="779" alt="Screenshot 2025-12-15 at 8 45 25 PM"
src="https://github.com/user-attachments/assets/2118d4f1-f557-46f3-a4b6-56c406cf9aca"
/>

crates/ty/docs/configuration.md

@@ -200,24 +200,22 @@ Configuration override that applies to specific files based on glob patterns.
 
 An override allows you to apply different rule configurations to specific
 files or directories. Multiple overrides can match the same file, with
-later overrides take precedence.
+later overrides take precedence. Override rules take precedence over global
+rules for matching files.
 
-### Precedence
-
-- Later overrides in the array take precedence over earlier ones
-- Override rules take precedence over global rules for matching files
-
-### Examples
+For example, to relax enforcement of rules in test files:
 
 ```toml
-# Relax rules for test files
 [[tool.ty.overrides]]
 include = ["tests/**", "**/test_*.py"]
 
 [tool.ty.overrides.rules]
 possibly-unresolved-reference = "warn"
+```
 
-# Ignore generated files but still check important ones
+Or, to ignore a rule in generated files but retain enforcement in an important file:
+
+```toml
 [[tool.ty.overrides]]
 include = ["generated/**"]
 exclude = ["generated/important.py"]

crates/ty_project/src/metadata/options.rs

@@ -1225,24 +1225,22 @@ pub struct TerminalOptions {
 ///
 /// An override allows you to apply different rule configurations to specific
 /// files or directories. Multiple overrides can match the same file, with
-/// later overrides take precedence.
+/// later overrides take precedence. Override rules take precedence over global
+/// rules for matching files.
 ///
-/// ### Precedence
-///
-/// - Later overrides in the array take precedence over earlier ones
-/// - Override rules take precedence over global rules for matching files
-///
-/// ### Examples
+/// For example, to relax enforcement of rules in test files:
 ///
 /// ```toml
-/// # Relax rules for test files
 /// [[tool.ty.overrides]]
 /// include = ["tests/**", "**/test_*.py"]
 ///
 /// [tool.ty.overrides.rules]
 /// possibly-unresolved-reference = "warn"
+/// ```
 ///
-/// # Ignore generated files but still check important ones
+/// Or, to ignore a rule in generated files but retain enforcement in an important file:
+///
+/// ```toml
 /// [[tool.ty.overrides]]
 /// include = ["generated/**"]
 /// exclude = ["generated/important.py"]

ty.schema.json

@@ -222,7 +222,7 @@
       "additionalProperties": false
     },
     "OverridesOptions": {
-      "description": "Configuration override that applies to specific files based on glob patterns.\n\nAn override allows you to apply different rule configurations to specific\nfiles or directories. Multiple overrides can match the same file, with\nlater overrides take precedence.\n\n### Precedence\n\n- Later overrides in the array take precedence over earlier ones\n- Override rules take precedence over global rules for matching files\n\n### Examples\n\n```toml\n# Relax rules for test files\n[[tool.ty.overrides]]\ninclude = [\"tests/**\", \"**/test_*.py\"]\n\n[tool.ty.overrides.rules]\npossibly-unresolved-reference = \"warn\"\n\n# Ignore generated files but still check important ones\n[[tool.ty.overrides]]\ninclude = [\"generated/**\"]\nexclude = [\"generated/important.py\"]\n\n[tool.ty.overrides.rules]\npossibly-unresolved-reference = \"ignore\"\n```",
+      "description": "Configuration override that applies to specific files based on glob patterns.\n\nAn override allows you to apply different rule configurations to specific\nfiles or directories. Multiple overrides can match the same file, with\nlater overrides take precedence. Override rules take precedence over global\nrules for matching files.\n\nFor example, to relax enforcement of rules in test files:\n\n```toml\n[[tool.ty.overrides]]\ninclude = [\"tests/**\", \"**/test_*.py\"]\n\n[tool.ty.overrides.rules]\npossibly-unresolved-reference = \"warn\"\n```\n\nOr, to ignore a rule in generated files but retain enforcement in an important file:\n\n```toml\n[[tool.ty.overrides]]\ninclude = [\"generated/**\"]\nexclude = [\"generated/important.py\"]\n\n[tool.ty.overrides.rules]\npossibly-unresolved-reference = \"ignore\"\n```",
       "type": "array",
       "items": {
         "$ref": "#/definitions/OverrideOptions"