More info on the lecture start.

Author: janpgit

docs/index.html

@@ -34,8 +34,9 @@ <h1>Unix/Linux Programming in C (NSWI015)</h1>
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-Given that we have the lecture and the labs back to back, <b>we start with the
-lecture at 9:00</b>.
+Given that we have the lecture and the labs back to back, <b>we start every week
+with the lecture at 9:00.  Every week the labs are different so we recommend you
+to attend every week if possible (even that it's officially biweekly).</b>.
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