add admonition to note about magnet quenching

Updated warning formatting for ramp rate adjustments.

Author: rerpha

doc/specific_iocs/cryogenics/Cryogenic-SMS-PSU.md

@@ -25,7 +25,9 @@ Firstly, check which ramp file is in use and check at which fields the ramp rate
 
 The lowest allowable ramp rate in the power supply is `0.0008 A/s`. Other allowable ramp rates are discrete values - when a ramp rate is sent to the power supply, it will select the next lowest possible ramp rate. Unfortunately, the absolute lowest ramp rate (`0.0008 A/s`) seems to be broken on the hardware, which reports a rate of `2^30` in this case. Therefore, the lowest ramp rate in the ramp table must be higher than the **second** lowest ramp rate allowable by the hardware. 
 
-**Always check with cryogenics before increasing any ramp rates, as it is possible to cause a magnet quench by selecting a too-high ramp rate.**
+:::{danger}
+Always check with cryogenics before increasing any ramp rates, as it is possible to cause a magnet quench by selecting a too-high ramp rate.
+:::
 
 ### PSU COM Ports disappearing