diff --git a/ESP-IDF_Robot/tutorial/docs/build/simplepdf/.buildinfo b/ESP-IDF_Robot/tutorial/docs/build/simplepdf/.buildinfo
index 65508109f..d2474c663 100644
--- a/ESP-IDF_Robot/tutorial/docs/build/simplepdf/.buildinfo
+++ b/ESP-IDF_Robot/tutorial/docs/build/simplepdf/.buildinfo
@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file records the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: b51ea769be8b3f825cae136c29ef0ec6
+config: 3540e82ad8a5b09256a5cc9e60579ce6
 tags: 62a1e7829a13fc7881b6498c52484ec0
diff --git a/ESP-IDF_Robot/tutorial/docs/build/simplepdf/esp-idf_espnow_rc-car.pdf b/ESP-IDF_Robot/tutorial/docs/build/simplepdf/esp-idf_espnow_rc-car.pdf
index 2b1b37761..5ae6bd58e 100644
Binary files a/ESP-IDF_Robot/tutorial/docs/build/simplepdf/esp-idf_espnow_rc-car.pdf and b/ESP-IDF_Robot/tutorial/docs/build/simplepdf/esp-idf_espnow_rc-car.pdf differ
diff --git a/ESP-IDF_Robot/tutorial/docs/build/simplepdf/index.html b/ESP-IDF_Robot/tutorial/docs/build/simplepdf/index.html
index e18794fe8..405f8aff5 100644
--- a/ESP-IDF_Robot/tutorial/docs/build/simplepdf/index.html
+++ b/ESP-IDF_Robot/tutorial/docs/build/simplepdf/index.html
@@ -359,9 +359,11 @@ direction of the RC car.
             Based on this constraint, the RC car can only move front, back, and turn/rotate left and right. Any other movements are not
 possible (i.e. diagonal or sideways).
            </p>
-           <div class="math notranslate nohighlight">
-            \[PWM_{left} = PWM_{right}\]
-           </div>
+           <p>
+            <span class="math notranslate nohighlight">
+             \(PWM_{left} = PWM_{right}`\)
+            </span>
+           </p>
            <div class="admonition-what-is-pwm admonition">
             <p class="admonition-title">
              What is PWM?