Inconsistencies in menu/chapter names

[bkoelman]

Some menu titles below GUIDELINES (left side of https://csharpcodingguidelines.com/) differ from the chapter titles (which are shown at the top right when clicking on that menu item).

Overall, the convention seems to be:
Menu title: "{section} ({ruleId})"
Chapter title: "{section} Guidelines"

For example:
Menu title: Class Design (AV1000)
Chapter title: Class Design Guidelines

Based on that, the following menu titles should be changed to match:

• "Miscellaneous (AV1200)" should be: "Miscellaneous Design (AV1200)"
• "Maintainability Guidelines (AV1500)" should be: "Maintainability (AV1500)"
• "Naming Conventions (AV1700)" should be: "Naming (AV1700)"
• "Performance Guidelines (AV1800)" should be: "Performance (AV1800)"
• ".NET Framework Usage (AV2200)" should be: "Framework (AV2200)" (furthermore, the old name implies these rules apply to classic .NET Framework only and not .NET Core, which is not the case)
• "Comments and XML Documentation (AV2300)" should be: "Documentation (AV2300)"
• "Layout Guidelines (AV2400)" should be: "Layout (AV2400)"
• "Resources & Articles" should be: "Links & Articles"

In the INTRODUCTION menu, item "Basic Principles" should be renamed to "Basic principles" (note the casing).

[bkoelman]

The names matter to me because they are reflected in analyzer category names and help links in https://github.com/bkoelman/CSharpGuidelinesAnalyzer, which I am updating to match with the latest guidelines version.