Prettify

validator/README.md

@@ -130,24 +130,24 @@ In the case the test passes in your local machine but fails in Circle CI,
 you can use docker to reproduce the test errors.
 
 1. Start an interacitve docker container
-   ```bash
-   docker run -it ubuntu bash
-   ```
+    ```bash
+    docker run -it ubuntu bash
+    ```
 1. Run following commands in the container. Note that you are already the `root` user inside the docker container.
-   ```bash
-   apt update
-   apt install -y curl git gpg sudo
-   curl -fsSL https://deb.nodesource.com/setup_16.x | bash -
-   apt install -y nodejs
-   git clone https://github.com/ampproject/amphtml.git
-   cd amphtml
-   npm install
-   .circleci/install_validator_dependencies.sh
-   amp validator-cpp && echo SUCCESS || echo FAIL
-   ```
+    ```bash
+    apt update
+    apt install -y curl git gpg sudo
+    curl -fsSL https://deb.nodesource.com/setup_16.x | bash -
+    apt install -y nodejs
+    git clone https://github.com/ampproject/amphtml.git
+    cd amphtml
+    npm install
+    .circleci/install_validator_dependencies.sh
+    amp validator-cpp && echo SUCCESS || echo FAIL
+    ```
 1. To see more information of the tests
-   ```bash
-   sed -i 's/--test_output=errors//' build-system/tasks/validator.js
-   sed -i 's/--ui_event_filters=INFO//' build-system/tasks/validator.js
-   ```
-   Then re-run `amp validator-cpp && echo SUCCESS || echo FAIL`.
+    ```bash
+    sed -i 's/--test_output=errors//' build-system/tasks/validator.js
+    sed -i 's/--ui_event_filters=INFO//' build-system/tasks/validator.js
+    ```
+    Then re-run `amp validator-cpp && echo SUCCESS || echo FAIL`.