Update README.md

README.md

@@ -150,7 +150,10 @@ Some good info here: https://github.com/raphaelbs/esp32-cam-ai-thinker
 
 Very handy for testingout bits of ESP32 code:  https://wokwi.com/
 
-Some sites I find handy when creating HTML:  https://htmlg.com/html-editor/  http://www.freeformatter.com/html-formatter.html#ad-output  https://www.w3schools.com/
+Some sites I find handy when creating HTML:
+      test html: https://www.w3schools.com/tryit/tryit.asp?filename=tryhtml_hello 
+      check html for erros:   http://www.freeformatter.com/html-formatter.html#ad-output 
+      learn HTML:   https://www.w3schools.com/
 
 If you have any handy info, tips, or improvements to my code etc. please feel let me know at: alanesq@disroot.org