Correcting typo and added vscode files to .gitignore (#41)

.gitignore

@@ -3,6 +3,7 @@
 .idea
 build/
 *.swp
+.vscode
 
 # Byte-compiled / optimized / DLL files
 __pycache__/

flow/communications/slack/slack.py

@@ -278,8 +278,8 @@ def publish_error(sender, message, class_name, method_name):
             else:
                 attachment.color = '#ff0000'
 
-            attachment.author_name = environment + " " + (str(app_version) if str(app_version) is not None else 'Uknown Version')
-            attachment.title = "Build " + (os.environ.get('BUILD_ID') if os.environ.get('BUILD_ID') is not None else 'Uknown')
+            attachment.author_name = environment + " " + (str(app_version) if str(app_version) is not None else 'Unknown Version')
+            attachment.title = "Build " + (os.environ.get('BUILD_ID') if os.environ.get('BUILD_ID') is not None else 'Unknown')
             attachment.title_link = (os.environ.get('BUILD_URL') if os.environ.get('BUILD_URL') is not None else '')
             attachment.footer = 'Flow'
             attachment.text = message
@@ -392,7 +392,7 @@ def publish_custom_message(self, message, channel=None, user='Flow', icon=None,
             attachment.color = '#0000ff'
 
         attachment.author_name = app_name + ' ' + environment + " " + (str(app_version) if str(app_version) is not
-                                                                                           None else 'Uknown Version')
+                                                                                           None else 'Unknown Version')
         if 'github' in self.config.json_config and 'org' in self.config.json_config['github']:
             attachment.author_name = "{msg} \n org: {org} \n repo: {repo}".format(msg=attachment.author_name,
                                                                     org=self.config.json_config['github']['org'],