diff --git a/system/zopfli/README b/system/zopfli/README
index 1bdf00f886..7550b48840 100644
--- a/system/zopfli/README
+++ b/system/zopfli/README
@@ -1,18 +1,18 @@
-Zopfli Compression Algorithm is a compression library programmed in C to perform
-very good, but slow, deflate or zlib compression.
+Zopfli Compression Algorithm is a compression library programmed in C
+to perform very good, but slow, deflate or zlib compression.
 
-The basic function to compress data is ZopfliCompress in zopfli.h. Use the
-ZopfliOptions object to set parameters that affect the speed and compression.
-Use the ZopfliInitOptions function to place the default values in the
-ZopfliOptions first.
+The basic function to compress data is ZopfliCompress in zopfli.h. Use
+the ZopfliOptions object to set parameters that affect the speed and
+compression. Use the ZopfliInitOptions function to place the default
+values in the ZopfliOptions first.
 
-ZopfliCompress supports deflate, gzip and zlib output format with a parameter.
-To support only one individual format, you can instead use ZopfliDeflate in
-deflate.h, ZopfliZlibCompress in zlib_container.h or ZopfliGzipCompress in
-gzip_container.h.
+ZopfliCompress supports deflate, gzip and zlib output format with a
+parameter. To support only one individual format, you can instead use
+ZopfliDeflate in deflate.h, ZopfliZlibCompress in zlib_container.h or
+ZopfliGzipCompress in gzip_container.h.
 
-This library can only compress, not decompress. Existing zlib or deflate
-libraries can decompress the data.
+This library can only compress, not decompress. Existing zlib or
+deflate libraries can decompress the data.
 
 Zopfli Compression Algorithm was created by Lode Vandevenne and Jyrki
 Alakuijala, based on an algorithm by Jyrki Alakuijala.