added/updated descriptions to clarify node and credential fields

packages/nodes-base/credentials/GoogleApi.credentials.ts

@@ -13,6 +13,7 @@ export class GoogleApi implements ICredentialType {
 			name: 'email',
 			type: 'string' as NodePropertyTypes,
 			default: '',
+			description: 'The Google Service account similar to user-808@project.iam.gserviceaccount.com.<br />See the <a href="https://github.com/jovotech/learn-jovo/blob/master/tutorials/google-spreadsheet-private-cms/README.md#google-api-console">tutorial</a> on how to create one.',
 
 		},
 		{
@@ -21,6 +22,7 @@ export class GoogleApi implements ICredentialType {
 			lines: 5,
 			type: 'string' as NodePropertyTypes,
 			default: '',
+			description: 'Use the multiline editor. Make sure there are exactly 3 lines.<br />-----BEGIN PRIVATE KEY-----<br />KEY IN A SINGLE LINE<br />-----END PRIVATE KEY-----',
 		},
 	];
 }

packages/nodes-base/credentials/TelegramApi.credentials.ts

@@ -13,6 +13,7 @@ export class TelegramApi implements ICredentialType {
 			name: 'accessToken',
 			type: 'string' as NodePropertyTypes,
 			default: '',
+			description: 'Chat with the <a href="https://telegram.me/botfather">bot father</a> to obtain the access token.',
 		},
 	];
 }