correct some documentation sentences

docs/jflow_advanced_configuration.html

@@ -195,9 +195,9 @@
 								<td>-</td>
 								<td>The subject of the mail. This value will be used for all workflow. It can be overloaded within the
 									workflow implementation using <code>self.set_subject("subject")</code>.<br />
-									Placeholders can be used to access at the workflow attributes or unparametred methods: 
+									Placeholders can be used to access workflow attributes or unparametred methods: 
 									<code>###attribute###</code> or <code>###method()###</code>. For timestamps you can apply 
-									date function with syntax: <code>###attribute|date###</code> or <code>###method()|date###"</code>.
+									date function with the following syntax: <code>###attribute|date###</code> or <code>###method()|date###"</code>.
 								</td>
 							</tr>
 							
@@ -206,9 +206,9 @@
 								<td>-</td>
 								<td>The mail content. This value will be used for all workflow. It can be overloaded within the
 									workflow implementation using <code>self.set_message("message")</code>.<br />
-									Placeholders can be used to access at the workflow attributes or unparametred methods: 
+									Placeholders can be used to access workflow attributes or unparametred methods: 
 									<code>###attribute###</code> or <code>###method()###</code>. For timestamps you can apply 
-									date function with syntax: <code>###attribute|date###</code> or <code>###method()|date###"</code>.
+									date function with the following syntax: <code>###attribute|date###</code> or <code>###method()|date###"</code>.
 								</td>
 							</tr>
 						</tbody>

docs/jflow_core_workflow.html

@@ -852,9 +852,9 @@ bwamem = self.add_component("BWAmem", [bwaindex.databank, self.reads])</code></p
 									<td>true</td>
 									<td>None</td>
 									<td>The email subject to use for the email sent to the user once the workflow is completed.<br />
-										Placeholders can be used to access at the workflow attributes or unparametred methods: 
-										<code>###attribute###</code> or <code>###method()###</code>. For timestamps you can apply 
-										date function with syntax: <code>###attribute|date###</code> or <code>###method()|date###"</code>.
+									Placeholders can be used to access workflow attributes or unparametred methods: 
+									<code>###attribute###</code> or <code>###method()###</code>. For timestamps you can apply 
+									date function with the following syntax: <code>###attribute|date###</code> or <code>###method()|date###"</code>.
 									</td>
 								</tr>
 							</tbody>
@@ -884,9 +884,9 @@ bwamem = self.add_component("BWAmem", [bwaindex.databank, self.reads])</code></p
 									<td>true</td>
 									<td>None</td>
 									<td>The email message to use for the email sent to the user once the workflow is completed.<br />
-										Placeholders can be used to access at the workflow attributes or unparametred methods: 
-										<code>###attribute###</code> or <code>###method()###</code>. For timestamps you can apply 
-										date function with syntax: <code>###attribute|date###</code> or <code>###method()|date###"</code>.
+									Placeholders can be used to access workflow attributes or unparametred methods: 
+									<code>###attribute###</code> or <code>###method()###</code>. For timestamps you can apply 
+									date function with the following syntax: <code>###attribute|date###</code> or <code>###method()|date###"</code>.
 									</td>
 								</tr>
 							</tbody>