docs: debbuging information should appear on the main page

Author: alipsilv

content/pybytes/api/_index.md

@@ -4,6 +4,28 @@ aliases:
   - pybytes/api
 ---
 
+
+If you are facing any issues try to enable debugging.
+
+### Debugging
+There are multiple debug levels, 0 is warnings only, 6 is currently the highest used).
+
+#### use:
+
+import pycom;
+
+pycom.nvs_set('pybytes_debug', debugLevel)
+
+
+#### e.g.
+```
+    >> import pycom;
+     >> pycom.nvs_set('pybytes_debug', 6)
+```    
+
+
+# API List
+
 * [Add custom method](add_custom_method)
 
 * [Activate](activate)