Start migrating the doc comments to JSDoc

Author: lovasoa

.jsdoc.config.json

@@ -0,0 +1,10 @@
+{
+    "plugins": [
+        "plugins/markdown"
+    ],
+    "source": {
+        "include": [
+            "src/api.js"
+        ]
+    }
+}

package-lock.json

@@ -27,7 +27,8 @@
 		"test-asm-debug": "node test/all.js asm-debug",
 		"test-asm-memory-growth": "node test/all.js asm-memory-growth",
 		"test-wasm": "node test/all.js wasm",
-		"test-wasm-debug": "node test/all.js wasm-debug"
+		"test-wasm-debug": "node test/all.js wasm-debug",
+		"doc": "jsdoc -c .jsdoc.config.json"
 	},
 	"homepage": "http://github.com/kripken/sql.js",
 	"repository": {
@@ -41,6 +42,7 @@
 		"eslint": "^6.8.0",
 		"eslint-config-airbnb-base": "^14.0.0",
 		"eslint-plugin-import": "^2.20.1",
+		"jsdoc": "^3.6.3",
 		"node-fetch": "^2.6.0",
 		"puppeteer": "^2.1.1",
 		"test": ">=0.6"