typo fix (#305) (#313)

Author: davidhou17

source/troubleshooting.txt

@@ -24,7 +24,7 @@ Error: qemu exited unexpectedly with exit code -1, stderr: qemu-system-x86_64: E
 
 The {+atlas-cli+} uses `Podman <https://podman.io/>`__ and `QEMU 
 <https://www.qemu.org/>`__. We have identified this issue on MacOS x86 
-architectures. To resolve this isseu, upgrade to the latest version of 
+architectures. To resolve this issue, upgrade to the latest version of 
 QEMU and restart Podman.
 
 Error: exit status 127