feat(develop): Document options for adding code source information (#15161)

Document options to add code source information to spans in the SDKs. Code source attributes are added to database queries and outgoing HTTP requests.

Author: alexander-alderman-webb

develop-docs/sdk/telemetry/traces/index.mdx

@@ -156,6 +156,53 @@ Examples:
 `[403, 404]`: don't sample transactions corresponding to requests with status code 403 or 404
 `[[300, 399], [401, 404]]`: don't sample transactions corresponding to requests with status codes between 300 and 399 (inclusive) or between 401 and 404 (inclusive)
 
+### `enableDbQuerySource`
+
+This MUST be a boolean value that defaults to `true`.
+
+The option controls if attributes with code source information are set on database query spans when the query duration exceeds a given threshold.
+
+The following attributes, or a subset thereof, SHOULD be set on database query spans if the threshold is exceeded.
+Values for some of the attributes below may be unavailable in some situations for the SDK, and in these cases a subset MAY be provided.
+
+The attributes are described in <Link to="https://getsentry.github.io/sentry-conventions/generated/attributes/code.html">Sentry's Span Convention Documentation</Link>.
+
+- code.file.path
+- code.function.name
+- code.line.number
+
+### `dbQuerySourceThresholdMs`
+
+A threshold duration, which MUST be a floating point or integer value.
+The value specifies, in milliseconds, the duration of a database query before code source information is added.
+
+The default value is platform-dependent and SHOULD balance the overhead of adding the information with its utility for queries that exceed the threshold duration for users of the SDK.
+In Python and PHP Laravel, the default threshold is 100 milliseconds.
+
+### `enableHttpRequestSource`
+
+This MUST be a boolean value that defaults to `true`.
+
+The option controls if attributes with code source information are set on outgoing HTTP requests.
+When enabled, the attributes SHOULD be attached only when the time to receive the response from sending the request exceeds a given threshold.
+
+The following attributes, or a subset thereof, SHOULD be set if the threshold is exceeded.
+Values for some of the attributes below may be unavailable in some situations for the SDK, and in these cases a subset MAY be provided.
+
+The attributes are described in <Link to="https://getsentry.github.io/sentry-conventions/generated/attributes/code.html">Sentry's Span Convention Documentation</Link>.
+
+- code.file.path
+- code.function.name
+- code.line.number
+
+### `httpRequestSourceThresholdMs`
+
+A threshold duration, which MUST be a floating point or integer value.
+The value specifies, in milliseconds, the time between sending an HTTP request and receiving its response, after which code source information is added.
+
+The default value is platform-dependent and SHOULD balance the overhead of adding the information with its utility for request-response cycles that exceed the threshold duration for users of the SDK.
+
+
 ## `Event` Changes
 
 As of writing, transactions are implemented as an extension of the `Event`