rename of entries fields to get only singular field names

entries/krystal_drop.md

@@ -1,15 +1,15 @@
 # Krystal Drop
 
 - Home: http://krystaldrop.sourceforge.net/, https://sourceforge.net/projects/krystaldrop/
-- Inspirations: Magical Drop
+- Inspiration: Magical Drop
 - State: beta, inactive since 2004
 - Download: http://krystaldrop.sourceforge.net/downloads.html, https://sourceforge.net/projects/krystaldrop/files/krystaldrop/
 - Platform: Linux
-- Keywords: puzzle, remake
+- Keyword: puzzle, remake
 - Code repository: https://gitlab.com/osgames/krystaldrop.git (conversion of cvs), http://krystaldrop.cvs.sourceforge.net (cvs)
 - Code language: C++
 - Code license: GPL-2.0
-- Code dependencies: SDL
+- Code dependency: SDL
 - Developer: krys
 
 Remake of Magical Drop.