add image title // improve image captions

README.md

@@ -7,29 +7,23 @@ The latter lacks a good UI for web developers, so npmFrog is here to present you
 
 👐 It's free and open source. :)
 
-![Screenshot: package list](art/screenshot-list.png)
-> *The homepage: an overview list of your company's packages.*
-
+![Screenshot: package list](art/screenshot-list.png "The homepage: an overview list of your company's packages")
+> ⬑ *The homepage: an overview list of your company's packages.*
 
 ![Screenshot: search](art/screenshot-search.png)
-> *The awesome package search: lookup tags, crafters and packages.*
-
+> ⬑ *The awesome package search: lookup tags, crafters and packages.*
 
 ![Screenshot: package detail page](art/screenshot-detail.png)
-> *Every package has a detail page to view a lot of useful meta information. Even the remote-cache packages.*
-
+> ⬑ *Every package has a detail page to view a lot of useful meta information. Even the remote-cache packages.*
 
 ![Screenshot: crafter info](art/screenshot-crafter.png)
-> *Get details about the people who crafted the package to contact them or to search for other packages by the same author.*
-
+> ⬑ *Get details about the people who crafted the package to contact them or to search for other packages by the same author.*
 
 ![Screenshot: scripts](art/screenshot-scripts.png)
-> *Get an overview of all npm scripts in the `package.json`.*
-
+> ⬑ *Get an overview of all npm scripts in the `package.json`.*
 
 ![Screenshot: file inspector](art/screenshot-files.png)
-> *Inspect files that are contained in the package and view or download its code.*
-
+> ⬑ *Inspect files that are contained in the package and view or download its code.*
 
 ## Prerequisites