Add change notes and sign binary files (#22)
diff --git a/CHANGES.md b/CHANGES.md
new file mode 100644
index 0000000..329bace
--- /dev/null
+++ b/CHANGES.md
@@ -0,0 +1,16 @@
+Changes by Version
+==================
+Release Notes.
+
+0.1.0
+------------------
+
+#### Features
+- Add command `swctl service` to list services
+- Add command `swctl instance` and `swctl search` to list and search instances of service.
+- Add command `swctl endpoint` to list endpoints of service.
+- Add command `swctl linear-metrics` to query linear metrics and plot the metrics in Ascii Graph mode.
+- Add command `swctl single-metrics` to query single-value metrics.
+
+#### Chores
+- Set up GitHub actions to check code styles, licenses, and tests.
diff --git a/Makefile b/Makefile
index c1afb90..155548f 100644
--- a/Makefile
+++ b/Makefile
@@ -107,4 +107,6 @@
release: verify license release-src release-bin
gpg --batch --yes --armor --detach-sig $(RELEASE_SRC).tgz
- shasum -a 512 $(RELEASE_SRC).tgz > $(RELEASE_SRC).tgz.sha512
\ No newline at end of file
+ shasum -a 512 $(RELEASE_SRC).tgz > $(RELEASE_SRC).tgz.sha512
+ gpg --batch --yes --armor --detach-sig $(RELEASE_BIN).tgz
+ shasum -a 512 $(RELEASE_BIN).tgz > $(RELEASE_BIN).tgz.sha512
