message: docs: add html template for sizer component in template syntax guide
  fixes
  PR Close
diff: @@ -1105,6 +1105,8 @@ It has a `size` value property and a companion `sizeChange` event:
  <code-example path="two-way-binding/src/app/sizer/sizer.component.ts" header="src/app/sizer.component.ts"></code-example>
  +<code-example path="two-way-binding/src/app/sizer/sizer.component.html" header="src/app/sizer.component.html"></code-example>
  +
  The initial `size` is an input value from a property binding.
  Clicking the buttons increases or decreases the `size`, within
  min/max value constraints,
  