Format fixes in html files of 2020

2020/kurdyukov3/README.md

@@ -45,7 +45,7 @@ It is interesting how well smeonoe can raed txet wtih lots of tyops in it.
 How well can you raed porg.c, C prgoarm that is in the shpae of an SD card (or
 is it a pnuch crad)?
 
-BTW: this funny reading of English (which also works with several other
+**BTW**: this funny reading of English (which also works with several other
 languages) is called
 [typoglycemia](https://www.mrc-cbu.cam.ac.uk/personal/matt.davis/Cmabrigde/)
 (the article however is incorrect in stating that if the letters were more