<commit_before>
Docker Server
=============
cyber-dojo probes the host server to see if [docker](https://www.docker.io/)
is installed. If it is then...

  * when you press the <code>create</code> button it will only offer languages whose <code>manifest.json</code> file
    has an `image_name` entry that exists. For example, if
    ```bash
    cyberdojo/languages/Java-JUnit/manifest.json
    ```
    contains this...
    ```json
    {
      ...<commit_msg>md file tweak<commit_after>
Docker Server
=============
cyber-dojo probes the host server to see if [docker](https://www.docker.io/)
is installed. If it is then...

  * when you press the <code>create</code> button it will only offer languages whose <code>manifest.json</code> file
    has an <code>image_name</code> entry that exists. For example, if
    ```bash
    cyberdojo/languages/Java-JUnit/manifest.json
    ```
    contains this...
    ```json
    {
      ...
{'fraction_non_alphanumeric': 0.1499460625674218, 'fraction_numerical': 0.0, 'mean_word_length': 3.0701754385964914, 'pattern_counts': {'":': 0, '<': 13, '<?xml version=': 0, '>': 13, 'https://': 2, 'lorem ipsum': 0, 'www.': 2, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '3263295', 'n_tokens_mistral': 292, 'n_tokens_neox': 276, 'n_words': 94}