Update README (#1725)
Update README (#1725)

* Use https and fix broken bouncycastle link
* Show/hide export details section
milleruntime/accumulo,apache/accumulo,milleruntime/accumulo,ctubbsii/accumulo,phrocker/accumulo-1,milleruntime/accumulo,ctubbsii/accumulo,apache/accumulo,phrocker/accumulo-1,mjwall/accumulo,milleruntime/accumulo,phrocker/accumulo-1,apache/accumulo,milleruntime/accumulo,mjwall/accumulo,ctubbsii/accumulo,mjwall/accumulo,apache/accumulo,phrocker/accumulo-1,ctubbsii/accumulo,milleruntime/accumulo,apache/accumulo,phrocker/accumulo-1,mjwall/accumulo,phrocker/accumulo-1,ctubbsii/accumulo,milleruntime/accumulo,ctubbsii/accumulo,apache/accumulo,mjwall/accumulo,mjwall/accumulo,ctubbsii/accumulo,apache/accumulo,phrocker/accumulo-1,mjwall/accumulo