mod: syntax highlighting: (add / note management)

To comply with:
- https://forum.plantuml.net/354/sequence-diagram-possibly-multiple-hnotes-vertical-level?show=1156#a1156

Author: The-Lum

syntaxes/plantuml.yaml-tmLanguage

@@ -146,7 +146,7 @@ repository:
       - name: meta.comment.multiple.note.source.wsd
         match: .+?
     - comment: inline note of over
-      match: (?i)^\s*([rh]?note)(?:\s+(right|left|top|bottom))?\s+(?:(?:(of|over)\s*(?:[^\s\w\d]([\w\s]+)[^\s\w\d]|(?:(".+?"|\w+)(?:,\s*(".+?"|\w+))*)))|(on\s+link))\s*(#\w+)?\s*:\s*(.+)$
+      match: (?i)^\/?\s*([rh]?note)(?:\s+(right|left|top|bottom))?\s+(?:(?:(of|over)\s*(?:[^\s\w\d]([\w\s]+)[^\s\w\d]|(?:(".+?"|\w+)(?:,\s*(".+?"|\w+))*)))|(on\s+link))\s*(#\w+)?\s*:\s*(.+)$
       captures:
         '1': {name: keyword.other.noteof.source.wsd}
         '2': {name: constant.numeric.noteof.source.wsd}
@@ -158,7 +158,7 @@ repository:
         '8': {name: constant.numeric.noteof.source.wsd}
         '9': {name: meta.comment.noteof.source.wsd}
     - comment: multi-line note of over
-      begin: (?i)^\s*([rh]?note)(?:\s+(right|left|top|bottom))?\s+(?:(?:(of|over)\s*(?:[^\s\w\d]([\w\s]+)[^\s\w\d]|(?:(".+?"|\w+)(?:,\s*(".+?"|\w+))*)))|(on\s+link))\s*(#\w+)?\s*$
+      begin: (?i)^\/?\s*([rh]?note)(?:\s+(right|left|top|bottom))?\s+(?:(?:(of|over)\s*(?:[^\s\w\d]([\w\s]+)[^\s\w\d]|(?:(".+?"|\w+)(?:,\s*(".+?"|\w+))*)))|(on\s+link))\s*(#\w+)?\s*$
       beginCaptures:
         '1': {name: keyword.other.noteof.source.wsd}
         '2': {name: constant.numeric.noteof.source.wsd}