Fix typos in project README file

Closes #167
Closes #168

README.md

@@ -472,7 +472,7 @@ UpdateElementStyle("person", $bgColor=$COLOR_A_5, $fontColor=$COLOR_NEUTRAL, $bo
 UpdateElementStyle("external_person", $bgColor=$COLOR_B_5, $fontColor=$COLOR_NEUTRAL, $borderColor=$COLOR_B_1)
 UpdateElementStyle("system", $bgColor=$COLOR_A_4, $fontColor=$COLOR_NEUTRAL, $borderColor=$COLOR_A_2)
 UpdateElementStyle("external_system", $bgColor=$COLOR_B_4, $fontColor=$COLOR_NEUTRAL, $borderColor=$COLOR_B_2)
-UpdateRelStyle($lineColor=$COLOR_REL_LINE, &textColor=$COLOR_REL_TEXT)
+UpdateRelStyle($lineColor=$COLOR_REL_LINE, $textColor=$COLOR_REL_TEXT)
 
 Person(customer, "Personal Banking Customer")
 System(banking_system, "Internet Banking System")
@@ -495,11 +495,11 @@ SHOW_LEGEND()
 
 A model can be extended with (a table of) properties that concrete deployments or more detailed concepts can be documented:
 
-* `SetPropertyHeader(col1Name, col2Name, ?col3Name, ?col4Name)`:
+* `SetPropertyHeader(col1Name, col2Name, ?col3Name, ?col4Name)`
   The properties table can have up to 4 columns. The default header uses the column names "Name", "Description".
 * `WithoutPropertyHeader()`
   If no header is used, then the second column is bold.
-* `AddProperty(col1, col2, ?col3, `?col4)`
+* `AddProperty(col1, col2, ?col3, ?col4)`
   (All columns of) a property which will be added to the next element.
 
 Following sample uses all 3 different property definitions (and the aligned deployment node).