more README polish

Author: jcupitt

README.md

@@ -3,7 +3,7 @@
 [![Snap
 Status](https://build.snapcraft.io/badge/jcupitt/nip2.svg)](https://build.snapcraft.io/user/jcupitt/nip2)
 
-nip2 is a GUI for the [VIPS image processing 
+nip2 is a GUI for the [libvips image processing 
 library](https://libvips.github.io/libvips). It's a little like a spreadsheet:
 you create a set of formula connecting your objects together, and on a change
 nip2 recalculates.
@@ -14,7 +14,7 @@ nip2 recalculates.
 
 You can probably install nip2 via your package manager. For
 Windows and OS X, you can download a binary from the [nip2 releases
-area](https://github.com/libvips/nip2/releases). If you must build from
+page](https://github.com/libvips/nip2/releases). If you have to build from
 source, see the section below.
 
 ## Documentation
@@ -32,10 +32,8 @@ make
 sudo make install
 ```
 
-By default this will install files to `/usr/local`.
-
-See the Dependencies section below for a list of the things that
-nip2 needs in order to be able to build.
+By default this will install files to `/usr/local`. Check the summary at the
+end of `configure` and make sure you have all of the features you want. 
 
 If you downloaded from GIT you'll need:
 
@@ -46,8 +44,7 @@ If you downloaded from GIT you'll need:
 first to build the configure system. 
 
 nip2 needs vips, gtk2 and libxml2 at runtime and flex/bison at compile time.
-
-If you have fftw3, gsl, goffice, libgvc you get extra features. 
+If you have fftw3, gsl, goffice, libgvc you get extra features.
 
 ### snapcraft