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.

2011/blakely/README.md

@@ -2,7 +2,7 @@
 
 Philip Blakely    
 Cambridge, UK  
-<pmblakely@gmail.com>  
+<pmblakely@gmail.com>
 
 ## To build:
 
@@ -32,7 +32,7 @@ Zoom out and make your terminal window 53 or more lines deep.
 This program plays [Life](https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life)
 (see also [here](https://conwaylife.com)), computes Pi to 16 digits
 if given its own source as input, and allows to check if your garden
-is a [Garden of Eden](http://en.wikipedia.org/wiki/Garden_of_Eden_%28cellular_automaton%29), all in one source. 
+is a [Garden of Eden](http://en.wikipedia.org/wiki/Garden_of_Eden_%28cellular_automaton%29), all in one source.
 
 If you have enough time to spare, put the plan of your garden in a text file, 
 and run: