docs: remove dummy sections and disable expected-html-section linter

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: passed
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: batpigandme

README.md

@@ -18,21 +18,7 @@ limitations under the License.
 
 -->
 
-<!-- lint disable first-heading-level -->
-
-<!-- FIXME: the following two empty sections are merely to satisfy the linter for `expected-html-sections` which cannot, atm, be turned off -->
-
-<section class="usage">
-
-</section>
-
-<!-- /.usage -->
-
-<section class="examples">
-
-</section>
-
-<!-- /.examples -->
+<!-- lint disable first-heading-level expected-html-sections -->
 
 <!-- Section to include announcements. If section is included, add a horizontal rule *after* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->