Merge #160

160: Replaced a word in the readme to improve clarity r=adamgreig a=stephanbaker

Changing a word ('when' to 'went') that I believe was a typo.

Co-authored-by: Stephan Baker <[email protected]>

Author: bors[bot]

src/10-serial-communication/README.md

@@ -10,7 +10,7 @@
 <em>This is what we'll be using. I hope your laptop has one!</em>
 </p>
 
-Nah, don't worry. This connector, the DE-9, when out of fashion on PCs quite some time ago; it got
+Nah, don't worry. This connector, the DE-9, went out of fashion on PCs quite some time ago; it got
 replaced by the Universal Serial Bus (USB). We won't be dealing with the DE-9 connector itself but
 with the communication protocol that this cable is/was usually used for.