diff --git a/README.md b/README.md
index b5c463e..8aa21b9 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,11 @@ works for me. It always builds in a CHROOT, and it lets the user check the
 PKGBUILD (by default) prior to building. There is no automatic dependency
 management. That must be done in the config. An example config is provided.
 
+Note that if a "install=<filename>" is specified in the PKGBUILD, then the
+configured editor will also open the specified file once the PKGBUILD is
+approved by the user. This check is necessary because such "install scripts"
+define hooks that are run when the package is installed.
+
 # Things to know before using the helper
 
 Sometimes if a package prompts a user to select between alternate package
@@ -53,7 +58,7 @@ The AUR Helper requires several things:
   - A CHROOT to build in.
   - A "checking GNUPG" directory that contains the GPG public keys that will be
     checked when building the PKGBUILD.
-  - A "singing GNUPG" directory that contains the GPG private key that will sign
+  - A "signing GNUPG" directory that contains the GPG private key that will sign
     the built packages and repository database.
   - SUDO privileges to be able to use `makechrootpkg`.
   - `/etc/pacman.conf` must be configured to use the custom repository's