Add correct versions

ReleaseNotes.md

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+# `cc-backend` version 1.0.0
+
+Supports job archive version 1 and database version 4.
+
+This is the initial release of `cc-backend`, the API backend and frontend
+implementation of ClusterCockpit.
+
+**Breaking changes**
+
+The aggregate job statistic core hours is now computed using the job table
+column `num_hwthreads`. In a the future release this column will be renamed to
+`num_cores`. For correct display of core hours `num_hwthreads` must be correctly
+filled on job start. If your existing jobs do not provide the correct value in
+this column then you can set this with one SQL INSERT statement. This only applies
+if you have exclusive jobs, only. Please be aware that we treat this column as
+it is the number of cores. In case you have SMT enabled and `num_hwthreads`
+is not the number of cores the core hours will be too high by a factor!
+
+**Features**
+* Supports user roles admin, support, manager, user, and api.
+* Unified search bar supports job id, job name, project id, user name, and name
+* Performance improvements for sqlite db backend
+* Extended REST api supports to query job metrics
+* Better support for shared jobs
+* More flexible metric list configuration
+* Versioning and migration for database and job archive
+