Update for bergamot requiring an 'input program' too

Signed-off-by: Danila Fedorin <danila.fedorin@gmail.com>

content/blog/01_types_basics.md

@@ -441,7 +441,7 @@ and already be up-to-speed on a big chunk of the content.
 | {{< latex >}}\frac{e_1 : \text{number}\quad e_2 : \text{number}}{e_1+e_2 : \text{number}} {{< /latex >}}| Adding numbers gives a number |
 
 #### Playground
-{{< bergamot_widget id="widget-one" query="" >}}
+{{< bergamot_widget id="widget-one" query="" prompt="PromptConverter @ prompt(type(empty, ?term, ?t)) <- input(?term);" >}}
 section "" {
     TNumber @ type(?Gamma, intlit(?n), number) <-;
     TString @ type(?Gamma, strlit(?s), string) <-;