visjs local (#972)

* visjs local

* Update reference/commands/consumer/info.rst

Co-Authored-By: memsharded <james@conan.io>

* Update reference/commands/consumer/info.rst

Co-Authored-By: memsharded <james@conan.io>

* clarifying html paths automatic

reference/commands/consumer/info.rst

@@ -183,3 +183,15 @@ You can generate a graph of your dependencies, in dot or html formats:
     :height: 250 px
     :width: 300 px
     :align: center
+
+
+The generated html output contains links to third party resources, the *vis.js* library (2 files: *vis.min.js*, *vis.min.css*).
+By default they are retrieved from cloudfare. However, for environments without internet connection, these files
+could be also used from the local cache and installed with :command:`conan config install` by putting those
+files in the root of the configuration folder:
+
+- *vis.min.js*: Default link to "https://cdnjs.cloudflare.com/ajax/libs/vis/4.18.1/vis.min.js"
+- *vis.min.css*: Default link to "https://cdnjs.cloudflare.com/ajax/libs/vis/4.18.1/vis.min.css"
+
+It is not necessary to modify the generated html file. Conan will automatically use the local paths to the cache files if
+present, or the internet ones if not.