<commit_before><commit_msg>Added csv parser documentation<commit_after>#### JSON Parser

Parses a column as a JSON.

**Specification**
```
  parse-as-json {column-name}
```

**Example**
```
  parse-as-json body,
  parse-as-json body.deviceReference,
  parse-as-json body.deviceReference.OS,
  parse-as-csv  body.deviceReference.screenSize | true,
  drop body.deviceReference.screenSize,
  rename body.deviceReference.screenSize_col1 size1,
  rename body.deviceReference.screenSize_col2 size2,
  rename body.deviceReference.screenSize_col3 size3,
  rename body.deviceReference.screenSize_col4 size4,
  json-path body.deviceReference.alerts signal_lost $.[*].['Signal lost'],
  json-path signal_lost signal_lost $.[0],
  drop body,
  drop body.deviceReference.OS,
  drop body.deviceReference,
  rename body.deviceReference.timestamp timestamp,
  set column timestamp timestamp / 1000000,
  drop body.deviceReference.alerts,
  set columns timestamp,alerts,phone,battery,brand,type,comments,deviceId,os_name,os_version,size1,size2,size3,size4,signal
```

{'fraction_non_alphanumeric': 0.11142857142857143, 'fraction_numerical': 0.01904761904761905, 'mean_word_length': 5.651898734177215, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, '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': '5960862', 'n_tokens_mistral': 349, 'n_tokens_neox': 333, 'n_words': 67}