travis npm ssl fix for 0.8

see https://github.com/npm/npm/issues/20191

.travis.yml

@@ -35,6 +35,7 @@ matrix:
       env: TZ="America/Mexico_City" FMTS=misc
 
 before_install:
+  - "npm config set strict-ssl false"
   - "npm install -g npm@4.3.0"
   - "npm install -g mocha@2.x voc"
   - "npm install blanket"

demos/database/README.md

@@ -325,6 +325,8 @@ const aoa = XLSX.utils.sheet_to_json(ws);
 await db.collection('coll').insertMany(aoa, {ordered: true});
 ```
 
+</details>
+
 #### Firebase
 
 [`firebase-server`](https://www.npmjs.com/package/firebase-server) is a simple
@@ -335,6 +337,4 @@ Firebase deployment when plugging in the database connection info.
 The entire workbook object is persisted, a few cells are changed, and the stored
 data is dumped and exported to XLSX.
 
-</details>
-
 [![Analytics](https://ga-beacon.appspot.com/UA-36810333-1/SheetJS/js-xlsx?pixel)](https://github.com/SheetJS/js-xlsx)