docs: version links (#355)

Author: bmorelli25

docs/api.asciidoc

@@ -53,7 +53,7 @@ except ValueError:
  * `exc_info`: A `(type, value, traceback)` tuple as returned by https://docs.python.org/3/library/sys.html#sys.exc_info[`sys.exc_info()`]. If not provided, it will be captured automatically.
  * `date`: A `datetime.datetime` object representing the occurrence time of the error. If left empty, it defaults to `datetime.datetime.utcnow()`.
  * `context`: A dictionary with contextual information. This dictionary must follow the 
-    {apm-server-ref}/events-api.html#events-api-errors[Context] schema definition.
+    {apm-server-ref-v}/events-api.html#events-api-errors[Context] schema definition.
  * `custom`: A dictionary of custom data you want to attach to the event.
  * `handled`: A boolean to indicate if this exception was handled or not.
 
@@ -91,7 +91,7 @@ client.capture_message(param_message={
  * `date`: A `datetime.datetime` object representing the occurrence time of the error.
    If left empty, it defaults to `datetime.datetime.utcnow()`.
  * `context`: A dictionary with contextual information. This dictionary must follow the 
-    {apm-server-ref}/events-api.html#events-api-errors[Context] schema definition.
+    {apm-server-ref-v}/events-api.html#events-api-errors[Context] schema definition.
  * `custom`: A dictionary of custom data you want to attach to the event.
 
 Returns the id of the message as a string.

docs/getting-started.asciidoc

@@ -16,8 +16,8 @@ It has built-in support for Django and Flask performance metrics and error loggi
 [[additional-components]]
 === Additional Components
 
-APM Agents work in conjunction with the {apm-server-ref}/index.html[APM Server], {ref}/index.html[Elasticsearch], and {kibana-ref}/index.html[Kibana].
-Please view the {apm-get-started-ref}/index.html[APM Overview] for details on how these components work together.
+APM Agents work in conjunction with the {apm-server-ref-v}/index.html[APM Server], {ref}/index.html[Elasticsearch], and {kibana-ref}/index.html[Kibana].
+Please view the {apm-overview-ref-v}/index.html[APM Overview] for details on how these components work together.
 
 [[framework-support]]
 The Elastic APM Python Agent comes with support for the following frameworks:

docs/index.asciidoc

@@ -1,4 +1,5 @@
 :branch: current
+:server-branch: 6.5
 include::{asciidoc-dir}/../../shared/attributes.asciidoc[]
 
 ifdef::env-github[]