chore: Update Schemathesis usage instructions

Author: Stranger6667

src/content/code/tools/schemathesis.md

@@ -5,33 +5,38 @@ url: https://github.com/schemathesis/schemathesis
 github: schemathesis/schemathesis
 ---
 
-Install Schemathesis via `pip`:
+Run Schemathesis via Docker against your GraphQL endpoint:
 
 ```bash
-pip install schemathesis
+docker run schemathesis/schemathesis \
+   run https://your.app.com/graphql
 ```
 
-Then, create a file `test_api.py` with the content below and replace the `URL` value with your own GraphQL endpoint URL:
+Schemathesis will generate queries matching your GraphQL schema and catch server crashes automatically.
+Generated queries have arbitrary depth and may contain any subset of GraphQL types defined in the input schema.
+They expose edge cases in your code that are unlikely to be found otherwise.
 
-```python
-from hypothesis import settings
-import schemathesis
+Note that you can write your app in any programming language; the tool will communicate with it over HTTP.
 
-URL = "https://your.app.com/graphql"
-schema = schemathesis.graphql.from_url(http://github.com/%3Cspan%20class=%22pl-c1%22%3EURL%3C/span%3E)
+For example, running the command above against `https://bahnql.herokuapp.com/graphql` uncovers that running the `{ search(searchTerm: "") { stations { name } } }` query leads to a server error:
 
-@schema.parametrize()
-@settings(deadline=None)
-def test_api(case):
-    response = case.call()
-    case.validate_response(response)
 ```
-
-Then run `pytest test_api.py`. Note that you can write your app in any programming language; the tool will communicate with it over HTTP.
-
-Schemathesis will generate valid queries automatically based on the schema and will minimize failing cases.
-For example, running the code above against `https://bahnql.herokuapp.com/graphql` uncovers that running the `{ search(searchTerm: "") { stations { name } } }` query leads to a server error:
-
-```
-{"errors":[{"message":"Cannot read property \'city\' of undefined","locations":[{"line":1,"column":28}],"path":["search","stations"]}],"data":null}
+{
+  "errors": [
+    {
+      "message": "Cannot read property 'city' of undefined",
+      "locations": [
+        {
+          "line": 1,
+          "column": 28
+        }
+      ],
+      "path": [
+        "search",
+        "stations"
+      ]
+    }
+  ],
+  "data": null
+}
 ```