Create a schematic for A circuit board. 

libSymbols:
- Mechanical:MountingHole
schematicSymbols:
- libraryNickname: Mechanical
  entryName: MountingHole
  position:
    x: 110.49
    y: 74.93
    angle: 90
  properties:
  - key: Reference
    value: H1
    position:
      x: 109.22
      y: 71.12
      angle: 90
  - key: Value
    value: ''
    position:
      x: 110.49
      y: 78.74
      angle: 90
junctions: []
noConnects: []
busEntries: []
graphicalItems: []
globalLabels: []
sheetInstances:
- instancePath: /
  page: '1'
