Update spec version in docs

Author: bollwyvl

docs/Configuring.ipynb

@@ -62,7 +62,7 @@
     "- `argv`, a list of shell tokens to launch the server in `stdio` mode (as\n",
     "  opposed to `tcp`),\n",
     "- the `languages` which the server will respond to, and\n",
-    "- the schema `version` of the spec (currently only `1`)\n",
+    "- the schema `version` of the spec (currently `2`)\n",
     "\n",
     "```python\n",
     "# ./jupyter_notebook_config.json                 ---------- unique! -----------\n",
@@ -73,7 +73,7 @@
     "  \"LanguageServerManager\": {\n",
     "    \"language_servers\": {\n",
     "      \"a-language-server-implementation\": {\n",
-    "        \"version\": 1,\n",
+    "        \"version\": 2,\n",
     "        \"argv\": [\"/absolute/path/to/a-language-server\", \"--stdio\"],\n",
     "        \"languages\": [\"a-language\"]\n",
     "      }\n",
@@ -106,13 +106,13 @@
     "        # if installed as a binary\n",
     "        \"argv\": [shutil.which(\"a-language-server\")],\n",
     "        \"languages\": [\"a-language\"],\n",
-    "        \"version\": 1\n",
+    "        \"version\": 2\n",
     "    },\n",
     "    \"another-language-implementation\": {\n",
     "        # if run like a script\n",
     "        \"argv\": [shutil.which(\"another-language-interpreter\"), \"another-language-server\"],\n",
     "        \"languages\": [\"another-language\"],\n",
-    "        \"version\": 1\n",
+    "        \"version\": 2\n",
     "    }\n",
     "}\n",
     "```"