change use of <br> with blackslash for markdown line breaks

1985/applin/README.md

@@ -1,7 +1,7 @@
 # Best one liner
 
-Jack Applin [with help from Robert Heckendorn]<br>
-US<br>
+Jack Applin [with help from Robert Heckendorn]\
+US\
 <https://www.cs.colostate.edu/~applin/>
 
 ## To build:

1985/august/README.md

@@ -1,6 +1,6 @@
 # Most obscure program
 
-Lennart Augustsson<br>
+Lennart Augustsson\
 <https://web.archive.org/web/20090831055828/http://www.cs.chalmers.se/~augustss>
 
 ## To build:

1985/lycklama/README.md

@@ -1,6 +1,6 @@
 # Strangest appearing program
 
-Ed Lycklama<br>
+Ed Lycklama
 
 
 ## To build: