docs: Switch to @reconbot/jsdoc-theme for docs

It looks a little nicer and has a github link. This also upgrades eslint and tweaks the config.

.eslintrc

@@ -22,7 +22,7 @@
     "no-unused-vars": [2, { "vars": "all", "args": "after-used" }],
     "no-var": 2,
     "no-process-exit": 0,
-    "node/no-unsupported-features": 2,
+    "node/no-unsupported-features": [2, {"version" : 4}],
     "node/shebang": 0,
     "object-curly-spacing": [2, "always"],
     "object-shorthand": 2,

.jsdoc.json

@@ -20,15 +20,14 @@
     "monospaceLinks": true
   },
   "opts": {
-    "template": "node_modules/docdash",
+    "template": "node_modules/@reconbot/jsdoc-theme",
     "encoding": "utf8",
     "private": true,
     "destination": "./docs/",
     "recurse": true,
     "_tutorials": "./examples"
   },
-  "docdash": {
-    "static": true,
-    "sort": true
+  "reconbot": {
+    "github": "https://github.com/node-serialport/node-serialport"
   }
 }

README.md

@@ -29,7 +29,7 @@ We're not against firmware but we're better than it.
 
 ## API Documentation
 
-- [API Docs](https://node-serialport.github.io/parsers/)
+- [**API Docs**](https://node-serialport.github.io/node-serialport/)
 - [Parsers API Docs](https://node-serialport.github.io/parsers/)
 
 See our [changelog](CHANGELOG.md) for what's new, and our [upgrade guide](UPGRADE_GUIDE.md) for a walk-through on differences between major versions.