Fix case of PyTorch in issue templates (#77180)

Also add a space after ⚠️ emoji in an attempt to fix the rendering.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/77180
Approved by: https://github.com/suo

.github/ISSUE_TEMPLATE/ci-sev.md

@@ -1,5 +1,5 @@
 ---
-name: "⚠️CI SEV"
+name: "⚠️ CI SEV"
 about: Tracking incidents for PyTorch's CI infra.
 ---
 

.github/ISSUE_TEMPLATE/config.yml

@@ -2,4 +2,4 @@ blank_issues_enabled: true
 contact_links:
   - name: Questions
     url: https://discuss.pytorch.org/
-    about: Ask questions and discuss with other pytorch community members
+    about: Ask questions and discuss with other PyTorch community members

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -1,5 +1,5 @@
 name: 🚀 Feature request
-description: Submit a proposal/request for a new pytorch feature
+description: Submit a proposal/request for a new PyTorch feature
 
 body:
 - type: textarea