Update README.md

engrpanda · web-flow · commit d774ff5a8cce · 2020-08-20T07:19:59.000+08:00
diff --git a/README.md b/README.md
@@ -25,6 +25,7 @@ All the files (apk, circuit, program, codes) are all provided) :)
 
 https://www.instructables.com/id/Programming-ESP8266-ESP-12E-NodeMCU-Using-Arduino-/
 
+https://tttapa.github.io/ESP8266/Chap01%20-%20ESP8266.html
 
 #
 # Compatible with android 4.4.4 (API 19) to android 9(API 28). 

Original file line number	Diff line number	Diff line change
`@@ -25,6 +25,7 @@ All the files (apk, circuit, program, codes) are all provided) :)`
`25`	`25`
`26`	`26`	`https://www.instructables.com/id/Programming-ESP8266-ESP-12E-NodeMCU-Using-Arduino-/`
`27`	`27`
	`28`	`+https://tttapa.github.io/ESP8266/Chap01%20-%20ESP8266.html`
`28`	`29`
`29`	`30`	`#`
`30`	`31`	`# Compatible with android 4.4.4 (API 19) to android 9(API 28).`