README.md: reword

README.md

@@ -1,12 +1,11 @@
 OVERVIEW
 --------
-This directory contains **core** pkgsrc collection.  This collection
-contains build scripts and files for the packages required to create a
-basic Zeppe-Lin system.
+This directory contains **core** pkgsrc collection: build scripts and
+files for the packages required to create a basic Zeppe-Lin system.
 
 This distribution was originally forked from CRUX ports as of version
 3.6 and rewritten in POSIX sh(1p).  Also, the Zeppe-Lin has its own
-criteria for what packages should be in **core** collection.
+criteria for what packages should be in **core**.
 
 The original sources can be downloaded from:
 1. https://crux.nu/gitweb/?p=ports/core.git;a=summary