pages*: simplify page description (#12149)

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

pages/common/ant.md

@@ -1,7 +1,6 @@
 # ant
 
-> Apache Ant.
-> Tool for building and managing Java-based projects.
+> Apache Ant: build and manage Java-based projects.
 > More information: <https://ant.apache.org>.
 
 - Build a project with default build file `build.xml`: