Fixed docs-build (#129)

## Changes
* Updated link in the guides
* Added docs build on push
* Removed duplicated contributing guide

### Tests
<!-- How is this tested? Please see the checklist below and also
describe any other relevant tests -->

- [x] manually tested
- [ ] added unit tests
- [ ] added integration tests

.github/workflows/push.yml

@@ -56,3 +56,24 @@ jobs:
 
       - name: Fail on differences
         run: git diff --exit-code
+
+  docs:
+    name: Build Docusaurus
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: docs/dqx
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: yarn
+          cache-dependency-path: docs/dqx/yarn.lock # need to put the lockfile path explicitly
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+      - name: Build website
+        run: yarn build

docs/dqx/docs/guide.mdx

@@ -48,8 +48,8 @@ dlt_expectations = dlt_generator.generate_dlt_rules(profiles)
 
 ### Using CLI 
 
-You must install DQX in the workspace before (see [installation](/docs/installation#installation-in-a-databricks-workspace)).
-As part of the installation, profiler workflow is installed. It can be run manually in the workspace UI or using the CLI as below.
+You must install DQX in the workspace before, see the [Installation Guide](/docs/installation#dqx-installation-in-a-databricks-workspace).
+As part of the installation, profiler workflow is installed. The workflow can be run manually in the workspace UI or using the CLI as below.
 
 Run profiler workflow:
 ```commandline