Update README.md

TO DO: error handling in picoconnect_pa01

README.md

@@ -13,7 +13,7 @@ I have described the first ideas in more detail here:
 ### Versions
 
 - picoconnector_xx
-The first versions were based on communication in normal REPL mode. The advantage is that debugging is easyer.
+This first version was based on communication in normal REPL mode. The advantage is that debugging is easyer.
 The disadvantage is that it is a bit slow.
 - picoconnector GUI uses a Tkinter textbox connected directly to the serial port
 - picoconnect_paxx: I am developing a new version  that uses the paste mode. This should run faster.