Add note about CPID issues

Users keep missing this, Jim sent me a ping on discord the other day saying this needs to be more obvious.

guides/earn-grc.htm

@@ -73,7 +73,7 @@ <h5 class="text-center"> 1) Configure the Wallet </h5>
                         <figcaption class="text-center mb-4">  
                             Enter your email for your BOINC projects, and don't enter [email protected]
                         </figcaption> 
-                        c) Click next and make sure you see a check mark (✔️) next to the field labeled CPID. If you do not, go to the <a href="#troubleshooting">troubleshooting section</a> 
+                        c) Click next and make sure you see a check mark (✔️) next to the field labeled CPID. <b>If you get a "split CPID or mismatched e-mail" error</b> or have any issues, proceed to the <a href="#cpid-troubleshooting">troubleshooting section</a> 
                         <img class="img-fluid mx-auto d-block" src="/assets/img/guide/beacon-overview.png" alt="image showing an overview of information in the wallet about your BOINC account">
                         <figcaption class="text-center mb-4">
                             Note that your CPID and email will be different than in the image above
@@ -163,7 +163,7 @@ <h5 class="text-center">Q: My Wallet Is Not Staking</h5>
                 <h5 class="text-center mt-5">Q: My Balance is Too Low To Send a Beacon</h5>
                     <li>You need around 1 GRC to send a beacon. If you recently received some GRC, you will need to wait a few minutes for the transaction to be confirmed before using that GRC for a beacon.</li>
                     <li>You can use faucets to get free GRC for sending a Beacon: <a href="https://www.gridcoinstats.eu/faucet">Gridcoinstats.eu</a>, <a href="https://gridcoin.ch/faucet">Gridcoin.ch</a>. Our discord is a great place to ask for a few free GRC to get started</li>
-                <h5 class="text-center mt-5">Q: I See Multiple CPIDs or Receive a CPID Mismatch Error</h5>
+                <h5 id="cpid-troubleshooting" class="text-center mt-5">Q: I See Multiple CPIDs or Receive a CPID Mismatch Error</h5>
                     <li>Make sure all your BOINC projects are attached <b>using the same e-mail address</b>. Remove any that aren't.</li>
                     <li>If you did components of both the pool and solo mining guide (you should only pick one), detach pool projects in BOINC go to Tools -> Stop using account manager and then manually remove any projects added by the pool</li>
                     <li>It can take some time for CPID's to "settle" onto one final CPID. You can hurry this process along using <a href="/wiki/faq.html#i-get-an-e-mail-mismatch-or-split-cpid-error-in-the-solo-crunching-wizard-in-the-wallet" target="_blank">these steps</a></li>