fix(eslint-plugin): add strict-type-predicates to readme

packages/eslint-plugin/README.md

@@ -168,6 +168,7 @@ Pro Tip: For larger codebases you may want to consider splitting our linting int
 | [`@typescript-eslint/space-before-function-paren`](./docs/rules/space-before-function-paren.md)           | Enforces consistent spacing before function parenthesis                                                                                             |                    | :wrench: |                   |
 | [`@typescript-eslint/strict-boolean-expressions`](./docs/rules/strict-boolean-expressions.md)             | Restricts the types allowed in boolean expressions                                                                                                  |                    |          | :thought_balloon: |
 | [`@typescript-eslint/triple-slash-reference`](./docs/rules/triple-slash-reference.md)                     | Sets preference level for triple slash directives versus ES6-style import declarations                                                              | :heavy_check_mark: |          |                   |
+| [`@typescript-eslint/strict-type-predicates`](./docs/rules/strict-type-predicates.md)                     | Disallow always true (or false) type predicates                                                                                                     |                    |          | :thought_balloon: |
 | [`@typescript-eslint/type-annotation-spacing`](./docs/rules/type-annotation-spacing.md)                   | Require consistent spacing around type annotations                                                                                                  | :heavy_check_mark: | :wrench: |                   |
 | [`@typescript-eslint/typedef`](./docs/rules/typedef.md)                                                   | Requires type annotations to exist                                                                                                                  |                    |          |                   |
 | [`@typescript-eslint/unbound-method`](./docs/rules/unbound-method.md)                                     | Enforces unbound methods are called with their expected scope                                                                                       | :heavy_check_mark: |          | :thought_balloon: |