Trivial fixes in Readme (#1903)

Co-authored-by: Dirk Bäumer <dirkb@microsoft.com>

README.md

@@ -330,11 +330,11 @@ This extension contributes the following variables to the [settings](https://cod
   ]
   ```
 
-- `eslint.rules.customizations` (@since 2.1.20) - force rules to report a different severity within VS Code compared to the project's true ESLint configuration. Contains two properties:
+- `eslint.rules.customizations` (@since 2.1.20) - force rules to report a different severity within VS Code compared to the project's true ESLint configuration. Contains these properties:
   - `"rule`": Select on rules with names that match, factoring in asterisks as wildcards: `{ "rule": "no-*", "severity": "warn" }`
     - Prefix the name with a `"!"` to target all rules that _don't_ match the name: `{ "rule": "!no-*", "severity": "info" }`
   - `"severity"`: Sets a new severity for matched rule(s), `"downgrade"`s them to a lower severity, `"upgrade"`s them to a higher severity, or `"default"`s them to their original severity
-  - `"fixable`": Select only autofixable rules: `{ "rule": "no-*", "fixable": true, "severity": "info" }`
+  - `"fixable"`: Select only autofixable rules: `{ "rule": "no-*", "fixable": true, "severity": "info" }`
 
   In this example, all rules are overridden to warnings: