README.md: set cc=72 tw=70, cosmetic changes

Author: sighook

README.md

@@ -37,8 +37,10 @@ Build time
 INSTALL
 =======
 
-The shell commands `make && make install` should build and install this
-package.  See `config.mk` file for configuration parameters.
+The shell commands `make && make install` should build and install
+this package.
+
+See `config.mk` file for configuration parameters.
 
 st can be customized by creating a custom `config.h` file and
 (re)compiling the source code.