Improve README, add missing dep

.npmignore

@@ -0,0 +1,6 @@
+.github
+cypress
+Makefile
+jest-addon.config.js
+cypress.json
+__snapshots__

README.md

@@ -4,18 +4,19 @@
 
 This package includes blocks for building unidimensional (x-axis) grids in Volto.
 
-![ezgif-4-19f6e409685b](https://user-images.githubusercontent.com/486927/114311809-8b032600-9af0-11eb-90e0-0944294a6084.gif)
+![gif-video](https://user-images.githubusercontent.com/486927/114311809-8b032600-9af0-11eb-90e0-0944294a6084.gif)
 
 [Full size video](https://user-images.githubusercontent.com/486927/114309930-40ca7680-9ae9-11eb-873d-0504bddc0682.mov)
 
 ## Philosophy
 
 At kitconcept, we think that providing a full featured, two dimensional free will layout
-(eg. Plone Mosaic-ish like) to users is often overwhelming, specially if these users are
-not technical or power users. Providing a proper and comprehensive UX for this kind of
-layouts are often hard and counter intuitive, specially when dealing with behaviors in
-responsive layouts. Our experience is that allowing that also enables an easy path to
-craft "ugly layouts" way out of the (most probably) existing site style guide.
+(eg. Plone Mosaic-ish like) experience to users is often overwhelming for them,
+specially if these users are not technical or power users. Providing a proper and
+comprehensive UX for this kind of layouts are often hard and counter intuitive,
+specially when dealing with behaviors in responsive layouts. Our experience is that
+allowing that also enables an easy path to craft "ugly layouts" way out of the (most
+probably) existing site style guide.
 
 By providing a mean to restrict the users to unidimensional layouts (and still enabling
 them to build with them 2D layouts) are better than an UX that allows you to arbitrary

package.json

@@ -65,6 +65,7 @@
     "deep-freeze": "0.0.1",
     "eslint-plugin-prettier": "3.1.3",
     "jest-junit": "8.0.0",
+    "pofile": "1.0.10",
     "prettier": "2.0.5",
     "start-server-and-test": "1.10.6",
     "stylelint": "13.3.3",