Docs: Add right angle headers to Proto Accessories

Author: nseidle

docs/introduction.md

@@ -263,7 +263,7 @@ For those using the PTH version, you will need to connect to the PTHs. You could
     <a href="https://www.sparkfun.com/products/11894">
       <b>Female Headers</b>
       <br />
-      PRT-00115
+      PRT-11894
     </a>
 <!-- ----------WHITE SPACE BETWEEN PRODUCTS---------- -->
 -   <a href="https://www.sparkfun.com/products/9280">
@@ -336,6 +336,20 @@ For those using the PTH version, you will need to connect to the PTHs. You could
       PRT-08431
     </a>
 <!-- ----------WHITE SPACE BETWEEN PRODUCTS---------- -->
+-   <a href="https://www.sparkfun.com/products/553">
+      <figure markdown>
+        <img src="https://cdn.sparkfun.com/r/455-455/assets/parts/3/7/8/00553-03-L.jpg" style="width:140px; height:140px; object-fit:contain;" alt="Break Away Male Headers - Right Angle">
+      </figure>
+    </a>
+
+    ---
+
+    <a href="https://www.sparkfun.com/products/553">
+      <b>Break Away Male Headers - Right Angle</b>
+      <br />
+      PRT-00553
+    </a>
+<!-- ----------WHITE SPACE BETWEEN PRODUCTS---------- -->
 </div>
 
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