diff --git a/level102/system_calls_and_signals/intro/index.html b/level102/system_calls_and_signals/intro/index.html
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--- a/level102/system_calls_and_signals/intro/index.html
+++ b/level102/system_calls_and_signals/intro/index.html
@@ -1925,20 +1925,20 @@
 <p>The course does not discuss any other interrupts or interrupt handling apart from signals. The course will not deep dive into signal handler and GNU C library. </p>
 <h2 id="course-contents">Course Contents</h2>
 <ul>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/signals">Signals</a><ul>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/signals/#introduction-to-interrupts-and-signals">Introduction to interrupts and signals</a></li>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/signals/#types-of-signals">Types of signals</a></li>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/signals/#sending-signals-to-process">Sending signals to process</a></li>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/signals/#handling-signals">Handling signals</a></li>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/signals/#role-of-signals-in-system-calls-with-the-example-of-wait">Role of signals in system calls with the example of <em>wait()</em></a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/signals">Signals</a><ul>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/signals/#introduction-to-interrupts-and-signals">Introduction to interrupts and signals</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/signals/#types-of-signals">Types of signals</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/signals/#sending-signals-to-process">Sending signals to process</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/signals/#handling-signals">Handling signals</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/signals/#role-of-signals-in-system-calls-with-the-example-of-wait">Role of signals in system calls with the example of <em>wait()</em></a></li>
 </ul>
 </li>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls">System calls</a><ul>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls/#introduction">Introduction</a></li>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls/#types-of-system-calls">Types of system calls</a></li>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls/#user-mode-kernel-mode-and-their-transitions">User mode,kernel mode and their transitions</a></li>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls/working-of-write-system-call">Working of <em>write()</em> system call</a></li>
-<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls/debugging-in-linux-with-strace">Debugging in Linux with strace</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/system_calls">System calls</a><ul>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/system_calls/#introduction">Introduction</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/system_calls/#types-of-system-calls">Types of system calls</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/system_calls/#user-mode-kernel-mode-and-their-transitions">User mode,kernel mode and their transitions</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/system_calls/#working-of-write-system-call">Working of <em>write()</em> system call</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/level102/system_calls_and_signals/system_calls/#debugging-in-linux-with-strace">Debugging in Linux with strace</a></li>
 </ul>
 </li>
 </ul>
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