chore: merge develop into master (#750)

* chore(deps): update circleci/node:8.15.1 docker digest to ef1a0c4 (#715)

* docs: add link to wiki

.circleci/config.yml

@@ -23,7 +23,7 @@ aliases:
 defaults: &defaults
   working_directory: ~/algoliasearch-helper-js
   docker:
-    - image: circleci/node:8.15.1@sha256:3d32b8457083c33c04eb60fac02c0e39de5bd28de4b95393d7dcb5aa37b20af7
+    - image: circleci/node:8.15.1@sha256:ef1a0c468510c5f3de8fe9dbccb7dfaf29d7e21086e7db2bb59cdc811b30ae80
 
 version: 2
 jobs:

README.md

@@ -1,5 +1,7 @@
 *Coming from V1 (or js client v2)?* Read the [migration guide](https://github.com/algolia/algoliasearch-helper-js/wiki/Migration-guide-:-V1-to-V2) to the new version of the Helper.
 
+*Coming from V2?* Read the [migration guide](https://github.com/algolia/algoliasearch-helper-js/wiki/Migration-guide-:-V2-to-V3) to the new version of the Helper.
+
 **The JavaScript helper is an advanced library we provide to our users. If you are looking to build a complete search interface, we recommend you to use [instantsearch.js](https://community.algolia.com/instantsearch.js/). If you want to build an autocomplete menu, see [autocomplete.js](https://github.com/algolia/autocomplete.js).**
 
 # algoliasearch-helper-js