Format README.md a bit

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

README.md

@@ -40,10 +40,15 @@ Either
 
 Then:
 
-1. Edit the ```pom.xml``` file. Every entry should be pretty self-explanatory. In particular, change
+1. Edit the ```pom.xml``` file. Every entry should be pretty self-explanatory.
+   In particular, change
     1. the *artifactId* (and optionally also *groupId*)
-    2. the *version* (note that you typically want to use a version number ending in *-SNAPSHOT* to mark it as a work in progress rather than a final version)
-    3. the *dependencies* (read how to specify the correct *groupId/artifactId/version* triplet [here](http://fiji.sc/Maven#How_to_find_a_dependency.27s_groupId.2FartifactId.2Fversion_.28GAV.29.3F))
+    2. the *version* (note that you typically want to use a version number
+       ending in *-SNAPSHOT* to mark it as a work in progress rather than a
+       final version)
+    3. the *dependencies* (read how to specify the correct
+       *groupId/artifactId/version* triplet
+       [here](http://fiji.sc/Maven#How_to_find_a_dependency.27s_groupId.2FartifactId.2Fversion_.28GAV.29.3F))
     4. the *developer* information
     5. the *scm* information
 2. Remove the ```Process_Pixels.java``` file and add your own files