2017-08-20: note that it might be necessary to set PKG_CONFIG_PATH

note that it might be necessary to set PKG_CONFIG_PATH

diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -51,6 +51,8 @@ Install systemwide with `./configure --d
 
 Run tests with `make check`. Distribute your own version with `make distcheck`.
 
+If your Guile is installed in your home, you might need to use `./configure PKG_CONFIG_PATH=$HOME/.local/lib/pkgconfig/` and `make distcheck PKG_CONFIG_PATH=$HOME/.local/lib/pkgconfig/`
+
 Usage
 -----