Update release checklist and some minor fixes to the layout of the document

Release Checklist.md

@@ -15,13 +15,14 @@ The following checklist indicates which points must be taken into account when c
 
 * [ ] **Document Version:** The `revnumber` and `revdate` fields of the `index.adoc` (see https://github.com/modelica/fmi-ls-bus/blob/main/docs/index.adoc) file needs to be updated accordingly to the specified release version. 
 * [ ] **Manifest File Example:** The FMI-LS-BUS manifest file example version shall be updated to the specified release version (see https://github.com/modelica/fmi-ls-bus/blob/main/docs/examples/fmi_ls_bus_manifest_example.xml)
+* [ ] **Manifest Version:** Update fmi-ls-version of the chapter Layered Standard Manifest File to the respective release version.
 * [ ] **MIME Types** Adaptation of the MIME Types (version part), if relevant changes have occurred (see https://modelica.github.io/fmi-ls-bus/main/#low-cut-mime-types).
 An update is necessary if the operations has changed within the new target release.
 * [ ] **Terminal File Examples:** The FMI-LS-BUS terminal file example MIME Type versions shall be updated corresponding to the specified release (see https://github.com/modelica/fmi-ls-bus/blob/main/docs/examples/) if required.
-* [ ] **Remove unsupported Bus Types:** All unsupported buses of the respective version (see https://github.com/modelica/fmi-ls-bus/milestones) must be removed before creating the respective release.
+* [ ] **Remove unsupported Bus Types:** All unsupported buses and MIME Types (see MIME Types chapter) of the respective version (see https://github.com/modelica/fmi-ls-bus/milestones) must be removed before creating the respective release.
 The removal takes place on the created side branch.
 * [ ] **Milestones:** Can milestones (see https://github.com/modelica/fmi-ls-bus/milestones) be closed by the generated release? If so, close this on GitHub.
 * [ ] **Copyright Date:** Checking and adjusting the copyright date of the FMI-LS-BUS document and corresponding header files (see https://github.com/modelica/fmi-ls-bus/tree/main/headers); if necessary.
 * [ ] **Roadmap:** If the release to be created relates to a milestone within the roadmap, the roadmap (`roadmap.drawio`) must be updated accordingly.
 After this the `roadmap.svg` file must then also be regenerated.
-* [ ] **FMI LS BUS Implementer's Guide:** Update demos of FMI LS BUS Implementer's Guide (see https://github.com/modelica/fmi-guides/tree/main/ls-bus-guide/demos) if necessary.
+* [ ] **FMI LS BUS Implementer's Guide:** Update demo FMUs (modelDescription.xml, fmi-ls-manifest.xml, PackFMU.py) of FMI LS BUS Implementer's Guide (see https://github.com/modelica/fmi-guides/tree/main/ls-bus-guide/demos) if necessary.

docs/4_4_1_can.adoc

@@ -634,7 +634,7 @@ _A simple Network FMU might also choose to treat Bus Error or Arbitration operat
         Start:        "false"
 ----
 
-This structural parameter is mandatory for Network FMUs.
+This structural parameter is mandatory for Network FMUs only.
 A Bus Simulation (FMU) does not require this structural parameter.
 
 ===== Configuration of Bus Simulation [[low-cut-can-configuration-of-bus-simulation]]

docs/4____network_abstraction.adoc

@@ -276,7 +276,7 @@ The following table lists the MIME types to use for the Tx/Rx data variables wit
 
 .Overview of the available MIME types for the supported several bus types.
 [#table-mime-types]
-[cols="4,5",options="header"]
+[cols="4,3",options="header"]
 |====
 |MIME type
 |Description