Update README

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

Makefile

@@ -1,7 +1,5 @@
 .PHONY: build
 
-COMMIT_HASH=$(shell git rev-parse --short HEAD)
-
 build:
-	CGOENABLED=false GOOS=linux GOARCH=amd64 go build -o clickhouse_${COMMIT_HASH}_amd64 cmd/main.go
-	CGOENABLED=false GOOS=linux GOARCH=arm64 go build -o clickhouse_${COMMIT_HASH}_arm64 cmd/main.go
+	CGOENABLED=false GOOS=linux GOARCH=amd64 go build -o telegraf-clickhouse-plugin-linux-amd64 cmd/main.go
+	CGOENABLED=false GOOS=linux GOARCH=arm64 go build -o telegraf-clickhouse-plugin-linux-arm64 cmd/main.go

README.md

@@ -4,6 +4,22 @@ The ClickHouse output plugin saves Telegraf metric data to a ClickHouse database
 
 The plugin uses Golang's generic "database/sql" interface and third party drivers.
 
+## Build
+
+Dependencies:
+
+* [Go](https://golang.org/doc/install)
+* [Make](https://www.gnu.org/software/make/)
+
+To build the plugin, run `make` in the root directory of the project.
+
+Alternatively, you can build the plugin using Docker:
+
+```bash
+docker run --rm -v $(pwd):/telegraf -w /telegraf -e CGOENABLED=false -e GOOS=linux -e GOARCH=amd64 golang go build -o telegraf-clickhouse-plugin-linux-amd64 cmd/main.go
+docker run --rm -v $(pwd):/telegraf -w /telegraf -e CGOENABLED=false -e GOOS=linux -e GOARCH=arm64 golang go build -o telegraf-clickhouse-plugin-linux-arm64 cmd/main.go
+```
+
 ## Getting started
 
 To use the plugin, set the data source name (DSN). The user account must have privileges to insert rows and create tables.