Update readme and changelog

CHANGELOG.md

@@ -11,10 +11,11 @@
 
 #### New Inputs
 
+- [clickhouse](/plugins/inputs/clickhouse/README.md) - Contributed by @kshvakov
+- [execd](/plugins/inputs/execd/README.md) - Contributed by @jgraichen
 - [infiniband](/plugins/inputs/infiniband/README.md) - Contributed by @willfurnell
 - [modbus](/plugins/inputs/modbus/README.md) - Contributed by @garciaolais
 - [monit](/plugins/inputs/monit/README.md) - Contributed by @SirishaGopigiri
-- [execd](/plugins/inputs/execd/README.md) - Contributed by @jgraichen
 
 #### New Processors
 

README.md

@@ -165,6 +165,7 @@ For documentation on the latest development code see the [documentation index][d
 * [chrony](./plugins/inputs/chrony)
 * [cisco_telemetry_gnmi](./plugins/inputs/cisco_telemetry_gnmi)
 * [cisco_telemetry_mdt](./plugins/inputs/cisco_telemetry_mdt)
+* [clickhouse](./plugins/inputs/clickhouse)
 * [cloud_pubsub](./plugins/inputs/cloud_pubsub) Google Cloud Pub/Sub
 * [cloud_pubsub_push](./plugins/inputs/cloud_pubsub_push) Google Cloud Pub/Sub push endpoint
 * [conntrack](./plugins/inputs/conntrack)

plugins/inputs/clickhouse/README.md

@@ -1,9 +1,9 @@
-# Telegraf Input Plugin: ClickHouse
+# ClickHouse Input Plugin
 
-This plugin gathers the statistic data from [ClickHouse](https://github.com/ClickHouse/ClickHouse)  server.
+This plugin gathers the statistic data from [ClickHouse](https://github.com/ClickHouse/ClickHouse) server.
 
 ### Configuration
-```ini
+```toml
 # Read metrics from one or many ClickHouse servers
 [[inputs.clickhouse]]
   ## Username for authorization on ClickHouse server
@@ -71,22 +71,23 @@ This plugin gathers the statistic data from [ClickHouse](https://github.com/Clic
   # insecure_skip_verify = false
 ```
 
-### Metrics:
+### Metrics
+
 - clickhouse_events
   - tags:
     - hostname (ClickHouse server hostname)
     - cluster (Name of the cluster [optional])
     - shard_num (Shard number in the cluster [optional])
   - fields:
-    - all rows from system.events, all metrics is COUNTER type, look https://clickhouse.tech/docs/en/operations/system_tables/#system_tables-events
+    - all rows from [system.events][]
 
-- clickhouse_metrics
++ clickhouse_metrics
   - tags:
     - hostname (ClickHouse server hostname)
     - cluster (Name of the cluster [optional])
     - shard_num (Shard number in the cluster [optional])
   - fields:
-    - all rows from system.metrics, all metrics is GAUGE type, look https://clickhouse.tech/docs/en/operations/system_tables/#system_tables-metrics
+    - all rows from [system.metrics][]
 
 - clickhouse_asynchronous_metrics
   - tags:
@@ -94,9 +95,9 @@ This plugin gathers the statistic data from [ClickHouse](https://github.com/Clic
     - cluster (Name of the cluster [optional])
     - shard_num (Shard number in the cluster [optional])
   - fields:
-    - all rows from system.asynchronous_metrics, all metrics is GAUGE type, look https://clickhouse.tech/docs/en/operations/system_tables/#system_tables-asynchronous_metrics
+    - all rows from [system.asynchronous_metrics][]
 
-- clickhouse_tables
++ clickhouse_tables
   - tags:
     - hostname (ClickHouse server hostname)
     - table
@@ -117,3 +118,7 @@ clickhouse_metrics,cluster=test_cluster_two_shards_localhost,host=kshvakov,hostn
 clickhouse_tables,cluster=test_cluster_two_shards_localhost,database=system,host=kshvakov,hostname=localhost,shard_num=1,table=trace_log bytes=754i,parts=1i,rows=1i 1569421000000000000
 clickhouse_tables,cluster=test_cluster_two_shards_localhost,database=default,host=kshvakov,hostname=localhost,shard_num=1,table=example bytes=326i,parts=2i,rows=2i 1569421000000000000
 ```
+
+[system.events]: https://clickhouse.tech/docs/en/operations/system_tables/#system_tables-events
+[system.metrics]: https://clickhouse.tech/docs/en/operations/system_tables/#system_tables-metrics
+[system.asynchronous_metrics]: https://clickhouse.tech/docs/en/operations/system_tables/#system_tables-asynchronous_metrics