Fix typo

09_hw_debug_JTAG/README.md

@@ -10,7 +10,7 @@ In the exact order as listed:
 4. In new terminal, `make openocd` and keep terminal open.
 5. In new terminal, `make gdb` or make `make gdb-opt0`.
 
-<img src="../doc/09_demo.gif" widht="880">
+<img src="../doc/09_demo.gif" width="880">
 
 ## Table of Contents
 

11_virtual_memory/README.md

@@ -209,7 +209,7 @@ The following block diagram visualizes the underlying translation for the second
 
 ### Address translation using a 64 KiB page descriptor
 
-<img src="../doc/11_page_tables_64KiB.png" widht="880">
+<img src="../doc/11_page_tables_64KiB.png" width="880">
 
 ## Zero-cost abstraction
 

13_integrated_testing/README.md

@@ -7,7 +7,7 @@
 - It is also possible to have test automation for the kernel's `console` (provided over `UART` in
   our case): Sending strings/characters to the console and expecting specific answers in return.
 
-<img src="../doc/13_demo.gif" widht="880">
+<img src="../doc/13_demo.gif" width="880">
 
 ## Table of Contents
 

README.md

@@ -52,7 +52,7 @@ P.S.: In the future, Chinese :cn: versions of the tutorials will be maintained a
 
 ### Output of `make doc`
 
-<img src="doc/make_doc.png" widht="880">
+<img src="doc/make_doc.png" width="880">
 
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