docs: minor fix (multiple components -> multipleComponents)

Author: dschrempf

lsp-haskell.el

@@ -67,7 +67,7 @@ It could lead to bad perfomance in large projects."
 (defcustom-lsp lsp-haskell-session-loading
   "singleComponent"
   "Preferred approach for loading package components. Setting this
-to 'multiple components' (EXPERIMENTAL) allows the build
+to 'multipleComponents' (EXPERIMENTAL) allows the build
 tool (such as `cabal` or `stack`) to load multiple components at
 once `https://github.com/haskell/cabal/pull/8726', which is a
 significant improvement."