minor changes

Comment out "Please, before you create a new bug report, please make sure you searched in open and closed issues and couldn't find anything that matches."
Fix capitalization on MMU upgrade
Add space before dash for Printer firmware version
Add ** for bolding at the end of MMU upgrade firmware version
Add - to MMU upgrade firmware version

.github/ISSUE_TEMPLATE/bug_report.md

@@ -6,14 +6,14 @@ labels: bug
 assignees: ''
 
 ---
-
+<!--
 Please, before you create a new bug report, please make sure you searched in open and closed issues and couldn't find anything that matches.
-
+-->
 **Printer type** - [e.g. MK3S, MK3, MK2.5S, MK2.5, MK2S, MK2]
-**Printer firmware version**-  [e.g. 3.8.1, 3.8.1-RC1, ...]
+**Printer firmware version** -  [e.g. 3.8.1, 3.8.1-RC1, ...]
 
-**MMU Upgrade** - [e.g. MMU2S, MMU2, MMU1]
-**MMU upgrade firmware version [e.g. 1.0.6, 1.0.6-RC2, ...]
+**MMU upgrade** - [e.g. MMU2S, MMU2, MMU1]
+**MMU upgrade firmware version** - [e.g. 1.0.6, 1.0.6-RC2, ...]
 
 **SD card or USB/Octoprint**
   Please let us know if you print via SD card or USB/Octoprint