Update Docker image version

- Bump Alpine Hugo image version to v.101.0

- Fix the error:

```
fatal: detected dubious ownership in repository at '/github/workspace'
To add an exception for this directory, call:

   git config --global --add safe.directory /github/workspace
```

Dockerfile

@@ -1,9 +1,10 @@
-FROM klakegg/hugo:0.95.0-ext-alpine as docsy-user-guide
+FROM klakegg/hugo:0.101.0-ext-alpine as docsy-user-guide
 
 RUN apk update
 RUN apk add git
 COPY package.json /app/docsy/userguide/
 WORKDIR /app/docsy/userguide/
 RUN npm install --production=false
+RUN git config --global --add safe.directory /app/docsy
 
-CMD ["serve", "--cleanDestinationDir", "--themesDir ../..", "--baseURL http://localhost:1313/", "--buildDrafts", "--buildFuture", "--disableFastRender", "--ignoreCache", "--watch"]
+CMD ["serve", "--cleanDestinationDir", "--themesDir", "../..", "--baseURL",  "http://localhost:1313/", "--buildDrafts", "--buildFuture", "--disableFastRender", "--ignoreCache", "--watch"]