This commit is our first introduction to cross-cluster replication
docs. In this commit, we introduce the cross-cluster replication API
docs. We also add skelton docs for additional content that will be added
in a series of follow-up commits.

* master: (24 commits)
  ingest: better support for conditionals with simulate?verbose (elastic#34155)
  [Rollup] Job deletion should be invoked on the allocated task (elastic#34574)
  [DOCS] .Security index is never auto created (elastic#34589)
  CCR: Requires soft-deletes on the follower (elastic#34725)
  re-enable bwc tests (elastic#34743)
  Empty GetAliases authorization fix (elastic#34444)
  INGEST: Document Processor Conditional (elastic#33388)
  [CCR] Add total fetch time leader stat (elastic#34577)
  SQL: Support pattern against compatible indices (elastic#34718)
  [CCR] Auto follow pattern APIs adjustments (elastic#34518)
  [Test] Remove dead code from ExceptionSerializationTests (elastic#34713)
  A small typo in migration-assistance doc (elastic#34704)
  ingest: processor stats (elastic#34724)
  SQL: Implement IN(value1, value2, ...) expression. (elastic#34581)
  Tests: Add checks to GeoDistanceQueryBuilderTests (elastic#34273)
  INGEST: Rename Pipeline Processor Param. (elastic#34733)
  Core: Move IndexNameExpressionResolver to java time (elastic#34507)
  [DOCS] Force Merge: clarify execution and storage requirements (elastic#33882)
  TESTING.asciidoc fix examples using forbidden annotation (elastic#34515)
  SQL: Implement `CONVERT`, an alternative to `CAST` (elastic#34660)
  ...

* master: (74 commits)
  XContent: Check for bad parsers (elastic#34561)
  Docs: Align prose with snippet (elastic#34839)
  document the search context is freed if the scroll is not extended (elastic#34739)
  Test: Lookup node versions on rest test start (elastic#34657)
  SQL: Return error with ORDER BY on non-grouped. (elastic#34855)
  Reduce channels in AbstractSimpleTransportTestCase (elastic#34863)
  [DOCS] Updates Elasticsearch monitoring tasks (elastic#34339)
  Check self references in metric agg after last doc collection (elastic#33593) (elastic#34001)
  [Docs] Add `indices.query.bool.max_clause_count` setting (elastic#34779)
  Add 6.6.0 version to master (elastic#34847)
  Test: ensure char[] doesn't being with prefix (elastic#34816)
  Remove static import from HLRC doc snippet (elastic#34834)
  Logging: server: clean up logging (elastic#34593)
  Logging: tests: clean up logging (elastic#34606)
  SQL: Fix edge case: `<field> IN (null)` (elastic#34802)
  [Test] Mute FullClusterRestartIT.testShrink() until test is fixed
  SQL: Introduce ODBC mode, similar to JDBC (elastic#34825)
  SQL: handle X-Pack or X-Pack SQL not being available in a more graceful way (elastic#34736)
  [Docs] Add explanation for code snippets line width (elastic#34796)
  CCR: Rename follow-task parameters and stats (elastic#34836)
  ...

This commit adds some fields that were missing from put follow, and
fixes a bug in resume follow.

* 'master' of github.com:elastic/elasticsearch:
  Fix line length for org.elasticsearch.common.* files (elastic#34888)
  [ML] Extract common native process base class (elastic#34856)
  Refactor children aggregator into a generic ParentJoinAggregator (elastic#34845)
  [Style] Fix line lengths in action.admin.indices (elastic#34890)
  HLRC - add support for source exists API (elastic#34519)
  [CCR] Retry when no index shard stats can be found (elastic#34852)
  [Docs] audit logfile structured format (elastic#34584)
  [Test] Fix FullClusterRestartIT.testShrink() with copy_settings param (elastic#34853)
  Fix LineLength Check Suppressions: index.fielddata (elastic#34891)
  TEST: Stablize Minio Free Port Search (elastic#34894)
  Delete flaky SettingsBasedHostProviderIT test (elastic#34813)
  [ML] Include message in field_stats for text log files (elastic#34861)
  [TEST] HLRC: Expand failure messages in API checks (elastic#34838)
  Lowercase static final DeprecationLogger instance names (elastic#34887)

* fix-put-resume-follow:
  Fix put/resume follow request parsing

* master:
  Fix put/resume follow request parsing (elastic#34913)