fix(docker): instructions + bump deps + bind mount (#1809)

* fix docker

* test with docs folder

Dockerfile

@@ -1,10 +1,10 @@
-FROM node:20-slim AS builder
+FROM node:22-slim AS builder
 WORKDIR /usr/src/app
 COPY package.json .
 COPY package-lock.json* .
 RUN npm ci
 
-FROM node:20-slim
+FROM node:22-slim
 WORKDIR /usr/src/app
 COPY --from=builder /usr/src/app/ /usr/src/app/
 COPY . .