Revision of linux-logs.md

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+

Last error logs from the previous boot:

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```

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journalctl -b -1 -p err..alert

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```

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Last error logs from the boot before that:

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```

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journalctl -b -2 -p err..alert

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```

mxsr / linux-logs.md

		@@ -0,0 +1,11 @@
1	+	Last error logs from the previous boot:
2	+
3	+	```
4	+	journalctl -b -1 -p err..alert
5	+	```
6	+
7	+	Last error logs from the boot before that:
8	+
9	+	```
10	+	journalctl -b -2 -p err..alert
11	+	```