Removed typo from package add in docs

jakewilliami · jakewilliami · commit 72eb857e712c · 2021-01-12T19:08:41.000+13:00
diff --git a/docs/src/index.md b/docs/src/index.md
@@ -13,7 +13,7 @@ end
 ## Adding CodingTheory.jl
 ```@repl
 using Pkg
-Pkg.add("CodingTheory.jl")
+Pkg.add("CodingTheory")
 ```
 
 ## Documentation
