chore: add language identifiers

src/content/docs/apm/agents/python-agent/python-agent-api/webtransaction.mdx

@@ -13,7 +13,7 @@ redirects:
 
 ## Syntax
 
-```
+```py
 newrelic.agent.web_transaction(application=None, name=None, group=None, scheme=None, host=None, port=None, request_method=None, request_path=None, query_string=None, headers=None)
 ```
 
@@ -38,7 +38,7 @@ For more on the differences between and uses of these function forms, see [Varia
 
 ### Decorator parameters [#main-params]
 
-```
+```py
 newrelic.agent.web_transaction(application=None, name=None, group=None, scheme=None, host=None, port=None, request_method=None, request_path=None, query_string=None, headers=None)
 ```
 
@@ -178,15 +178,15 @@ Parameters for these calls:
       </td>
 
       <td>
-        Optional. The HTTP request headers An iterable of \[name, value] two-item iterables or dict of &#x7B;name:value}, where name is the header name, and value is the header value
+        Optional. The HTTP request headers An iterable of \[name, value] two-item iterables or dict of `{name:value}`, where name is the header name, and value is the header value
       </td>
     </tr>
   </tbody>
 </table>
 
 ### Wrapper parameters: [#wrapper-params]
 
-```
+```py
 newrelic.agent.WebTransactionWrapper(wrapped, application=None, name=None, group=None, scheme=None, host=None, port=None, request_method=None, request_path=None, query_string=None, headers=None)
 ```
 
@@ -222,7 +222,7 @@ newrelic.agent.WebTransactionWrapper(wrapped, application=None, name=None, group
 
 ### Path-based parameters: [#path-based-params]
 
-```
+```py
 newrelic.agent.wrap_web_transaction(module, object_path, application=None, name=None, group=None, scheme=None, host=None, port=None, request_method=None, request_path=None, query_string=None, headers=None)
 ```
 
@@ -274,7 +274,7 @@ newrelic.agent.wrap_web_transaction(module, object_path, application=None, name=
 
 Here's an example of using the web_transaction decorator:
 
-```
+```py
 @newrelic.agent.web_transaction()
 def get():
     ...
@@ -284,7 +284,7 @@ def get():
 
 An example of using the `WebTransactionWrapper`:
 
-```
+```py
 task = newrelic.agent.WebTransactionWrapper(get_next_task())
 result = task(*args, **kwargs)
 ```