docs: add scripts for notebook conversion (#3406)

* Update notebook conversion code
* Convert one more file

---------

Co-authored-by: Ben Burns <803016+benjamincburns@users.noreply.github.com>

docs/pyproject.toml

@@ -9,7 +9,7 @@ readme = "README.md"
 [tool.poetry.dependencies]
 python = "^3.10"
 aiohappyeyeballs = "2.4.3"
-pygments-ansi-color = ">=0.3"
+hub = "^3.0.1"
 
 [tool.poetry.group.docs.dependencies]
 langgraph = { path = "../libs/langgraph/", develop = true }
@@ -17,6 +17,7 @@ langgraph-checkpoint = { path = "../libs/checkpoint/", develop = true }
 langgraph-checkpoint-sqlite = { path = "../libs/checkpoint-sqlite", develop = true }
 langgraph-checkpoint-postgres = { path = "../libs/checkpoint-postgres", develop = true }
 langgraph-sdk = {path = "../libs/sdk-py", develop = true}
+langchain-ollama = "^0.2.3"
 mkdocs = "^1.6.0"
 mkdocs-autorefs = ">=1.0.1,<1.1.0"
 mkdocstrings = "^0.25.1"
@@ -28,10 +29,14 @@ mkdocs-material = {extras = ["imaging"], version = "^9.5.27"}
 markdown-callouts = "^0.4.0"
 markdown-include = "^0.8.1"
 mkdocs-exclude = "^1.0.2"
+psycopg = {extras = ["binary"], version = "^3.2.0"}
+psycopg-pool = "^3.2.0"
+pygments-ansi-color = ">=0.3"
 vcrpy = "^6.0.1"
 click = "^8.1.7"
 ruff = "^0.6.8"
 jupyter = "^1.1.1"
+langchain-cohere = "^0.4.2"
 
 [tool.poetry.group.test.dependencies]
 langchain = "^0.3.8"
@@ -41,6 +46,7 @@ langchain-nomic = "^0.1.3"
 langchain-fireworks = "^0.2.0"
 langchain-community = "^0.3.0"
 langchain-experimental = "^0.3.2"
+langchain-mistralai = "^0.2.6"
 langgraph-checkpoint-mongodb = "^0.1.0"
 langsmith = "^0.2.0"
 chromadb = "^0.5.5"