Fix version command in documentation (github#1685)

Co-authored-by: Santosh Bhavani <sb@mac-mini-i7.local>

Author: 2 people

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -51,7 +51,7 @@ body:
     id: version
     attributes:
       label: Specify CLI Version
-      description: "Run `specify --version` or `pip show spec-kit`"
+      description: "Run `specify version` or `pip show spec-kit`"
       placeholder: "e.g., 1.3.0"
     validations:
       required: true

extensions/EXTENSION-USER-GUIDE.md

@@ -46,7 +46,7 @@ Extensions are modular packages that add new commands and functionality to Spec
 ### Check Your Version
 
 ```bash
-specify --version
+specify version
 # Should show 0.1.0 or higher
 ```