fix(docs): lot of misspelling (#1180) [skip ci]

source/templates/markdown/README.md

@@ -32,7 +32,7 @@ Since the resulting output is a markdown file, it is possible to do additional f
 The templating engine is [EJS](https://github.com/mde/ejs) and can be used to interpolate any data retrieved by metrics.
 
 * `<%=` and `%>` are used to display escaped output
-  * `{{` and `}}` is also supported as syntaxic sugar
+  * `{{` and `}}` is also supported as syntactic sugar
 * `<%-` and `%>` are used to display raw output
 * `<%` and `%>` are used to execute JavaScript, and can also contains control statements such as conditionals and loops