Do not include source files of the `indentation` package.

These files were included only to avoid of intstallation of the unnecessary `trifecta` dependency.
Another way to avoid the `trifecta` dependency is documented now in the README file.

1 files changed, 8 insertions, 0 deletions

diff --git a/README.md b/README.md
index 98e4151d..f991b731 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,9 @@
 # lambdacube-compiler
+
+
+
+## Installation
+
+Use `cabal install --constraint="indentation -trifecta"` to avoid to install unnecessary trifecta dependency.
+
+