contrib: who: Add Alper to contributors, developers

Add myself, my contributions, and what I'll try to do in Libreboot to
the contributors and developer pages. I might not always have enough
time to work on things, though. Let's see how it goes.

It feels weird to place my section next to Leah and Caleb, mostly due to
not matching the bullet point format and contribution volume. It also
feels weird placing it to the top of the alphabetical-order contributors
list without mentioning the order, so do that as a title. Add a title
for projects as well.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>

site/contrib.md

@@ -61,6 +61,9 @@ using libreboot or in need of help.
 * Project goals. Caleb collaborates with Leah on determining project goals.
 Leah has the final say in every decision.
 
+External projects
+=================
+
 Coreboot project
 ----------------
 
@@ -87,6 +90,19 @@ U-Boot
 
 Libreboot uses U-Boot as the coreboot payload on supported ARM Chromebooks.
 
+Contributors in alphabetical order
+==================================
+
+Alper Nebi Yasak
+----------------
+
+Contributed the build system integration and documentation for using
+U-Boot as payload, and initial Libreboot ports of some ARM Chromebooks
+based on that.
+
+Alper also does upstream development on U-Boot, e.g. continued an almost
+complete port of the `gru-kevin` board and got it merged upstream.
+
 Alyssa Rosenzweig
 -----------------
 

site/who.md

@@ -29,6 +29,16 @@ and documentation.
 You can learn more about Caleb's involvement with libreboot, by reading his
 entry on the [page listing all contributors, past and present](contrib.md)
 
+Alper Nebi Yasak
+================
+
+Alper handles development of the U-Boot payload support in Libreboot,
+coordinates testing on Chromebooks that use it, and does any necessary
+upstream work on U-Boot itself. `alpernebbi` on Libera IRC.
+
+You can learn more about Alper's involvement with Libreboot, by reading his
+entry on the [page listing all contributors, past and present](contrib.md)
+
 Developers wanted!
 ==================