Fix YAML syntax error in CustomConfigPath description

- Fix indentation in multi-line description for CustomConfigPath parameter
- Remove problematic colon in example text that was breaking YAML parsing
- Ensure consistent formatting with other parameter descriptions

Author: EC2 Default User

template.yaml

@@ -100,8 +100,8 @@ Parameters:
     AllowedValues:
       - "lending-package-sample"
       - "default"
-    Description: Select the configuration preset for Pattern 1. Each configuration contains pre-tuned settings for specific document processing scenarios - see https://github.com/aws-samples/sample-genai-idp/blob/main/config_library/README.md. 
-    Note: This selected configuration will be replaced by the Custom Configuration Path if specified.
+    Description: >-
+     Select the configuration preset for Pattern 1. Each configuration contains pre-tuned settings for specific document processing scenarios - see https://github.com/aws-samples/sample-genai-idp/blob/main/config_library/README.md. Note: This selected configuration will be replaced by the Custom Configuration Path if specified.
     
   # Pattern 2 Parameters
 
@@ -114,8 +114,8 @@ Parameters:
       - "rvl-cdip-package-sample-with-few-shot-examples"
       - "bank-statement-sample"
       - "default"
-    Description: Select the configuration preset for Pattern 2. Each configuration contains pre-tuned settings for specific document processing scenarios see https://github.com/aws-samples/sample-genai-idp/blob/main/config_library/README.md. 
-    Note: Custom configuration overrides the selected pattern configuration when provided.
+    Description: >-
+     Select the configuration preset for Pattern 2. Each configuration contains pre-tuned settings for specific document processing scenarios see https://github.com/aws-samples/sample-genai-idp/blob/main/config_library/README.md. Note: Custom configuration overrides the selected pattern configuration when provided.
 
   Pattern2CustomClassificationModelARN:
     Type: String
@@ -141,8 +141,8 @@ Parameters:
     AllowedValues:
       - "rvl-cdip-package-sample"
       - "default"
-    Description: Select the configuration preset for Pattern 3. Each configuration contains pre-tuned settings for specific document processing scenarios - see https://github.com/aws-samples/sample-genai-idp/blob/main/config_library/README.md. 
-    Note: Custom configuration overrides the selected pattern configuration when provided.
+    Description: >-
+     Select the configuration preset for Pattern 3. Each configuration contains pre-tuned settings for specific document processing scenarios - see https://github.com/aws-samples/sample-genai-idp/blob/main/config_library/README.md. Note: Custom configuration overrides the selected pattern configuration when provided.
   # HITL (A2I) Configuration
 
   EnableHITL:
@@ -270,9 +270,11 @@ Parameters:
   CustomConfigPath:
     Type: String
     Default: ""
-    Description: S3 URI pointing to your custom configuration YAML file. When provided, this configuration overrides the selected pattern preset and applies to all processing patterns. Leave blank to use the selected pattern configuration preset. Example: s3://my-bucket/custom-config/config.yaml
+    Description: >-
+      S3 URI pointing to your custom configuration YAML file. When provided, this configuration overrides the selected pattern preset and applies to all processing patterns. 
+      Leave blank to use the selected pattern configuration preset. For example s3://my-bucket/custom-config/config.yaml
     AllowedPattern: '^(|s3://[a-zA-Z0-9.\-_]+(/.*)?)'
-    ConstraintDescription: Must be empty or a valid S3 URI (Example: s3://my-bucket/custom-config/config.yaml)
+    ConstraintDescription: Must be empty or a valid S3 URI (e.g., s3://my-bucket/custom-config/config.yaml)
 
   MaxConcurrentWorkflows:
     Type: Number