fix typo

Author: Rayce Rossum

docs/final_presentation/final_presentation.Rmd

@@ -146,7 +146,7 @@ class: inverse, center
 ---
 ## Challenges
 
-- Working with graph data is a new (the algorithm we're using was published in **late 2018**)
+- Working with graph data is new (the algorithm we're using was published in **late 2018**)
 
 --
 

docs/final_presentation/final_presentation.html

@@ -148,7 +148,7 @@
 ---
 ## Challenges
 
-- Working with graph data is a new (the algorithm we're using was published in **late 2018**)
+- Working with graph data is new (the algorithm we're using was published in **late 2018**)
 
 --