Fix typo in application guidelines

Removes the redundant word "a" in the project application guidelines under the sub-org section for better readability.

Author: Raymond-Saladi

index.html

@@ -338,7 +338,7 @@ <h3 class="content-subhead content-head-ribbon">
                                <li><strong>A blank file.</strong></li>
                                <li><strong>A random ebook or other file on your hard drive.</strong> Not only is this not a valid GSoC application, it's often copyright infringement.</li>
                                <li><strong>Submitted your grand idea for improving Python the language.</strong>  You can read more about how to propose enhancements to python in <a href="https://peps.python.org/pep-0001/">PEP-1</a>, but GSoC is not the place for that.</li>
-                               <li><strong>Project ideas not associated with a sub-org.</strong>  Often these are related to current popular topics.  For example, in 2020 we got a lot of covid-tracking application proposals. If you want to work on generative AI, LLMs, crypto, machine learning, big data, etc please apply to a do a project suggested by a mentor or work directly with a sub-org to make sure your project idea is something they actually want.  Most "hot topic" ideas we get are very poorly researched, infeasible, or otherwise not viable GSoC projects.</strong>
+                               <li><strong>Project ideas not associated with a sub-org.</strong>  Often these are related to current popular topics.  For example, in 2020 we got a lot of covid-tracking application proposals. If you want to work on generative AI, LLMs, crypto, machine learning, big data, etc please apply to do a project suggested by a mentor or work directly with a sub-org to make sure your project idea is something they actually want.  Most "hot topic" ideas we get are very poorly researched, infeasible, or otherwise not viable GSoC projects.</strong>
                                <li><strong>Really Simple Python application ideas that are not 175 or 350 hours worth of work</strong> (For example, a Python "hello world" script. Seriously. We get several of these most years.)</li>
                                <li><strong>Random Python code converted to a pdf.</strong></li>
                                <li><strong>A small business or personal open source project idea.</strong> GSoC is not a startup incubator, sorry. You need to apply to work with an open source project that already exists and has mentors available.</li>