Merge #11686: Make ISSUE_TEMPLATE a bit shorter, mention hardware tests

ea3f363 Make ISSUE_TEMPLATE a bit shorter, mention hardware tests (Matt Corallo)

Pull request description:

  Kinda getting tired of "block checksum mismatch error" issues on RPis that dont even have heatsinks...Also a shorter issue template might encourage people to actually read it.

Tree-SHA512: 943a286f6ea5c4f837a8dc3906342e1e428cf788d05ba9110f8005400d9775ae6f9cf3ce31ada201f5f7b95a6101314f2cb93f49dd92e242fbcea00aaae9e6e6

Author: MarcoFalke

.github/ISSUE_TEMPLATE.md

@@ -1,37 +1,23 @@
 <!--- Remove sections that do not apply -->
 
-This issue tracker is only for technical issues related to bitcoin-core.
+This issue tracker is only for technical issues related to Bitcoin Core.
 
-General bitcoin questions and/or support requests and are best directed to the [Bitcoin StackExchange](https://bitcoin.stackexchange.com).
+General bitcoin questions and/or support requests are best directed to the [Bitcoin StackExchange](https://bitcoin.stackexchange.com).
 
 For reporting security issues, please read instructions at [https://bitcoincore.org/en/contact/](https://bitcoincore.org/en/contact/).
 
-### Describe the issue
-
-### Can you reliably reproduce the issue?
-#### If so, please list the steps to reproduce below:
-1.
-2.
-3.
+If the node is "stuck" during sync or giving "block checksum mismatch" errors, please ensure your hardware is stable by running memtest and observe CPU temperature with a load-test tool such as linpack before creating an issue!
 
-### Expected behaviour
-Tell us what should happen
+### Describe the issue
+#### What behavior did you expect?
 
-### Actual behaviour
-Tell us what happens instead
+#### What was the actual behavior (provide screenshots if the issue is GUI-related)?
 
-### Screenshots.
-If the issue is related to the GUI, screenshots can be added to this issue via drag & drop.
+#### How reliably can you reproduce the issue, what are the steps to do so?
 
-### What version of bitcoin-core are you using?
-List the version number/commit ID, and if it is an official binary, self compiled or a distribution package such as PPA.
+### What version of Bitcoin Core are you using, where did you get it (website, self-compiled, etc)?
 
-### Machine specs:
-- OS:
-- CPU:
-- RAM:
-- Disk size:
-- Disk Type (HD/SDD):
+### What type of machine are you observing the error on (OS/CPU and disk type)?
 
 ### Any extra information that might be useful in the debugging process.
 This is normally the contents of a `debug.log` or `config.log` file. Raw text or a link to a pastebin type site are preferred.