Update resolver

Author: PHPirates

.gitignore

@@ -1,4 +1,5 @@
 *.iml
 .idea/
 .stack-work/
-out/
+out/
+stack.yaml.lock

readme.rst

@@ -21,6 +21,11 @@ The test framework Tasty_ is used, because it seems more recently maintained tha
 
     "Tasty lets you combine your unit tests, golden tests, QuickCheck/SmallCheck properties, and any other types of tests into a single test suite."
 
+-- Updating dependencies
+
+Check Stackage_ to see what the latest resolver is, and change that in `stack.yml`.
+
+.. _Stackage: https://www.stackage.org/lts
 .. _Haskell: https://www.haskell.org
 .. _StackOverflow: https://stackoverflow.com/a/51009817/4126843
 .. _Stack: https://github.com/commercialhaskell/stack

stack.yaml

@@ -18,7 +18,9 @@
 #
 # resolver: ./custom-snapshot.yaml
 # resolver: https://example.com/snapshots/2018-01-01.yaml
-resolver: lts-11.16
+
+# Find the latest resolver at https://www.stackage.org/lts
+resolver: lts-14.0
 
 # User packages to be built.
 # Various formats can be used as shown in the example below.