fix improper use of whitespace in README.md files

The use of the markdown trailing whitespace to indicate
line break should NOT be done when the following line is empty.

This removes such improper use of whitespace in README.md files.

2019/adamovsky/README.md

@@ -1,6 +1,6 @@
 # Most functional interpreter
 
-Ondřej Adamovský <oa@cmail.cz>  
+Ondřej Adamovský <oa@cmail.cz>
 
 ## To build:
 

2019/burton/README.md

@@ -1,6 +1,6 @@
 # Best one-liner
 
-Dave Burton  
+Dave Burton
 
 ## To build:
 
@@ -63,7 +63,7 @@ This program follows FreeBSD and macOS, the arbiters of correct for these purpos
 ### Limits:
 
 Requires the C locale and ASCII character set.   
-Input should be less than ten million octets "toavoidthisproblem".   
+Input should be less than ten million octets "toavoidthisproblem".
 
 ### See Also:
 

2019/ciura/README.md

@@ -1,6 +1,6 @@
 # Most alphabetic
 
-Marcin Ciura  
+Marcin Ciura
 
 
 ## To build:

2019/diels-grabsch1/README.md

@@ -1,7 +1,7 @@
 # Best small program
 
 Volker Diels-Grabsch  
-<https://njh.eu>  
+<https://njh.eu>
 
 
 ## To build:

2019/diels-grabsch2/README.md

@@ -1,7 +1,7 @@
 # Most self-aware
 
 Volker Diels-Grabsch  
-<https://njh.eu>  
+<https://njh.eu>
 
 
 ## To build:

2019/dogon/README.md

@@ -1,6 +1,6 @@
 # Best use of space and time
 
-Gil Dogon  
+Gil Dogon
 
 ## To build:
 

2019/duble/README.md

@@ -1,7 +1,7 @@
 # Best collaborative graphics
 
 Etienne Duble  
-<https://lig-membres.imag.fr/duble>  
+<https://lig-membres.imag.fr/duble>
 
 ## To build:
 

2019/endoh/README.md

@@ -2,7 +2,7 @@
 
 Yusuke Endoh  
 <https://github.com/mame/>  
-Mastodon: [@mame@ruby.social](https://ruby.social/@mame)  
+Mastodon: [@mame@ruby.social](https://ruby.social/@mame)
 
 ## To build:
 

2019/giles/README.md

@@ -1,6 +1,6 @@
 # Most in need of wide space
 
-Edward Giles  
+Edward Giles
 
 ## To build:
 

2019/karns/README.md

@@ -1,6 +1,6 @@
 # Most in need of whitespace
 
-Joshua Karns  
+Joshua Karns
 
 
 ## To build:

2019/mills/README.md

@@ -1,6 +1,6 @@
 # Most in need to be tweeted
 
-Christopher Mills  
+Christopher Mills
 
 ## To build:
 

2019/poikola/README.md

@@ -1,7 +1,7 @@
 # Most calendrical
 
 Timo Poikola  
-<https://ig.fi/other/ioccc>  
+<https://ig.fi/other/ioccc>
 
 ## To build:
 

2019/yang/README.md

@@ -1,7 +1,7 @@
 # Most in need of transparency
 
 Don Yang  
-<http://uguu.org/>  
+<http://uguu.org/>
 
 ## To build: