pre-commit: add eslint-plugin-jsdoc

This allows us to enforce that the libraries we ship
come with good JSDoc comments which should improve DX
when mapping with capable code editors.

.eslintrc.json

@@ -1,12 +1,13 @@
 {
-  "extends": "eslint:recommended",
+  "extends": ["eslint:recommended", "plugin:jsdoc/recommended"],
   "parserOptions": {
     "ecmaVersion": 7,
     "sourceType": "script"
   },
   "env": {
     "es6": true
   },
+  "plugins": ["jsdoc"],
   "rules": {
     "array-bracket-spacing" : "warn",
     "block-spacing": "warn",

.pre-commit-config.yaml

@@ -70,6 +70,8 @@ repos:
     stages:
     - commit
     - manual
+    additional_dependencies:
+    - eslint-plugin-jsdoc@^v37.4.0
 - repo: local
   hooks:
   - id: clang-format