Add step-by-step tutorial

samples/cat_facts.lua

@@ -0,0 +1,23 @@
+-- name = "Cat Facts"
+-- type = "widget"
+
+-- on_alarm is called automatically, up to once every 30 minutes, to refresh the widget.
+function on_alarm()
+    ui:show_text("Loading a random cat fact...")
+    http:get("https://catfact.ninja/fact")
+end
+
+function on_network_result(body, code)
+    if code == 200 then
+        local json = require "json"
+        local data = json.decode(body)  -- The json module converts the JSON string into a Lua table.
+        if data and data.fact then
+            ui:show_text("Random Cat Fact:\n" .. data.fact)
+        else
+            ui:show_text("Failed to retrieve a cat fact.")
+        end
+    else
+        ui:show_text("Error loading data. Code: " .. code)
+    end
+end
+