add changelog

Author: cpanato

.promu.yml

@@ -10,7 +10,6 @@ build:
         -X github.com/prometheus/common/version.Version={{.Version}}
         -X github.com/prometheus/common/version.Revision={{.Revision}}
         -X github.com/prometheus/common/version.Branch={{.Branch}}
-        -X github.com/prometheus/common/version.BuildUser={{user}}@{{host}}
         -X github.com/prometheus/common/version.BuildDate={{date "20060102-15:04:05"}}
 tarball:
     files:

CHANGELOG.md

@@ -0,0 +1,3 @@
+## 0.1.0 / 2020-11-23
+
+Initial release.

Makefile

@@ -13,7 +13,7 @@
 
 # Needs to be defined before including Makefile.common to auto-generate targets
 DOCKER_ARCHS ?= amd64
-DOCKER_IMAGE_NAME ?= ghactions-exporter
+DOCKER_IMAGE_NAME ?= github_actions_exporter
 
 all:: vet checkmetrics common-all