README: use markdown for the home page link.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Whitespace fixes in the README

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
README: use markdown for the Maven links

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
README: adjust the description re: imagej.app.directory

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
README: use markdown for ImageJ and Fiji links

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
README: improve wording

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
README: remove obsolete section about Apache Ant

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
README: fix tyops, reword a little, use more markdown

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>