umad-09-invoice.md:86 MD040/fenced-code-language Fenced code blocks should have a language specified [Context: "```"] https://github.com/DavidAnson/markdownlint/blob/v0.31.1/doc/md040.md

umad-09-invoice.md:90:99 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1] https://github.com/DavidAnson/markdownlint/blob/v0.31.1/doc/md009.md

umad-09-invoice.md:91:97 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1] https://github.com/DavidAnson/markdownlint/blob/v0.31.1/doc/md009.md

umad-09-invoice.md:104:96 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1] https://github.com/DavidAnson/markdownlint/blob/v0.31.1/doc/md009.md

umad-09-invoice.md:112 MD032/blanks-around-lists Lists should be surrounded by blank lines [Context: "- 0: ReceiverUma"] https://github.com/DavidAnson/markdownlint/blob/v0.31.1/doc/md032.md

umad-09-invoice.md:118:99 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1] https://github.com/DavidAnson/markdownlint/blob/v0.31.1/doc/md009.md

umad-09-invoice.md:128 MD022/blanks-around-headings/blanks-around-headers Headings should be surrounded by blank lines [Expected: 1; Actual: 0; Below] [Context: "### Signature Calculation"] https://github.com/DavidAnson/markdownlint/blob/v0.31.1/doc/md022.md

umad-09-invoice.md:132 MD022/blanks-around-headings/blanks-around-headers Headings should be surrounded by blank lines [Expected: 1; Actual: 0; Below] [Context: "## Reader requirements"] https://github.com/DavidAnson/markdownlint/blob/v0.31.1/doc/md022.md

umad-09-invoice.md:133 MD032/blanks-around-lists Lists should be surrounded by blank lines [Context: "- The invoice reader must vali..."] https://github.com/DavidAnson/markdownlint/blob/v0.31.1/doc/md032.md

Failed with exit code: 1

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/