fix typos + add \n in sub pkgs package.json

Author: etpinard

BUILDING.md

@@ -1,6 +1,6 @@
 # Building plotly.js
 
-The easiest way to bundle plotly.js into your application is to use the one of the distributed plotly.js packages on npm. These distributed packages should just work with **any** build framework. That said, if you're looking to save a few bytes, read the section below corresponding to your building framework.
+The easiest way to bundle plotly.js into your application is to use one of the distributed plotly.js packages on npm. These distributed packages should just work with **any** build framework. That said, if you're looking to save a few bytes, read the section below corresponding to your building framework.
 
 ## Webpack
 

tasks/stats.js

@@ -129,7 +129,7 @@ function getMainBundleInfo() {
         '',
         constants.partialBundlePaths.map(makeBundleHeaderInfo).join('\n'),
         '',
-        'Starting in `v1.39.0`, each plotly.js partial bundle has a corresponding npm package with no dependency.'
+        'Starting in `v1.39.0`, each plotly.js partial bundle has a corresponding npm package with no dependencies.'
     ];
 }
 

tasks/sync_packages.js

@@ -51,7 +51,7 @@ packagesSpecs.forEach(function(d) {
 
         fs.writeFile(
             path.join(pkgPath, 'package.json'),
-            JSON.stringify(cnt, null, 2),
+            JSON.stringify(cnt, null, 2) + '\n',
             cb
         );
     }