Fix broken link to "Logic and handling of algebraic effects"

Author: yallop

README.md

@@ -1957,7 +1957,7 @@ in various programming languages.
   by Matija Pretnar  
   ([dblp](https://dblp.uni-trier.de/rec/phd/ethos/Pretnar10.html))
   ([bibtex](https://dblp.uni-trier.de/rec/phd/ethos/Pretnar10.html?view=bibtex))
-  ([pdf](https://www.era.lib.ed.ac.uk/bitstream/handle/1842/4611/Pretnar2010.pdf))
+  ([pdf](https://era.ed.ac.uk/bitstream/handle/1842/4611/Pretnar2010.pdf?sequence=1&isAllowed=y))
 
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