replace HTML 5 obsolete tt element with span in 2019/poikola/README.md

2019/poikola/README.md

@@ -196,8 +196,8 @@ make your own decisions. Up there, it's all _up yours_.
 
 This code has some jumping too. I used some `goto`s instead of `longjmp(3)`. Some
 Finnish [ski jumping](https://en.wikipedia.org/wiki/Ski_jumping) sites are used
-as labels, however, there is `lahti` instead of <tt style="font-family: Monaco,
-Courier New, monospace;font-size: 12px;">salpausselk&auml;</tt>.
+as labels, however, there is `lahti` instead of
+<span style="font-family: monospace;">salpausselk&auml;</span>.
 
 
 ### SHA-3-512 Compatibility chart ###

2019/poikola/index.html

@@ -253,8 +253,8 @@ the feeling that I’ve been here before.</p>
 make your own decisions. Up there, it’s all <em>up yours</em>.</p>
 <p>This code has some jumping too. I used some <code>goto</code>s instead of <code>longjmp(3)</code>. Some
 Finnish <a href="https://en.wikipedia.org/wiki/Ski_jumping">ski jumping</a> sites are used
-as labels, however, there is <code>lahti</code> instead of <tt style="font-family: Monaco,
-Courier New, monospace;font-size: 12px;">salpausselkä</tt>.</p>
+as labels, however, there is <code>lahti</code> instead of
+<span style="font-family: monospace;">salpausselkä</span>.</p>
 <h3 id="sha-3-512-compatibility-chart">SHA-3-512 Compatibility chart</h3>
 <p>Tested against <a href="https://www.di-mgt.com.au/sha_testvectors.html">test vectors</a>.</p>
 <p>Clang-4.0: For optimization levels [0123s], the program compiles and produces