Add release howto

HOWTO-RELEASE.md

@@ -0,0 +1,14 @@
+# How to release
+
+1. Bump version in Makefile
+2. Add changelog entries to vmango.spec.in and debian/changelog
+3. `git commit -m 'Release X.X.X'`
+4. `git tag vX.X.X`
+5. Build source rpm and upload to COPR from web interface `./dockerbuild.sh centos-7 make srpm`
+6. Build sdeb
+    1. Build source deb for bionic: `/dockerbuild.sh ubuntu-1804 make sdeb DEB_DISTRIBUTION=bionic`
+    2. Sign: `/dockerbuild.sh ubuntu-1804 debsign -k XXX vmango_X.X.X-1_source.changes`
+    3. Upload: `dput ppa:subuk/vmango vmango_X.X.X-1_source.changes`
+7. `git push origin master --tags`
+8. `git push lp master --tags`
+9. Create github release from git tag