update slides about documentation

lectures/revealjs/07-documentation.adoc → lectures/revealjs/09-documentation.adoc

@@ -3,12 +3,12 @@
 :icons: font
 :includedir: revealjs/includes/
 :LECTURE_TOPIC: Documentation
-:LECTURE_NO: 7th lecture
+:LECTURE_NO: 9th lecture
 
 include::{includedir}header.adoc[]
 
 [.smaller-80][.center-paragraph]
-IT1901 Fall 2019 - {LECTURE_NO}
+IT1901 Fall 2020 - {LECTURE_NO}
 
 
 [background-color = "#124990"]
@@ -18,6 +18,7 @@ IT1901 Fall 2019 - {LECTURE_NO}
 - Documentation
 - Markdown
 - Gitlab Flavoured Markdown (GFM)
+- PlantUML
 
 
 [background-color = "#124990"]
@@ -146,4 +147,28 @@ https://gitlab.stud.idi.ntnu.no/help/user/markdown
 - it can be versioned same way as the code
 - holding  documentation in the repository and updating it will allow consulting the repository contents with the correct documentation for that snapshot in time
 
+== Plant UML
+
+- open source tool for UML diagrams
+- it takes a textual description and produces a diagram
+- supported within markdown in GitLab
+- uses Graphviz to lay out the diagrams
+
+== Adding diagrams to markdown 
+
+[source, role="stretch"]
+----
+```plantuml
+class LatLong {
+	double latitude
+	double longitude
+}
+class LatLongs
+LatLongs *--> "*" LatLong: "latLongs"
+class MetaData
+LatLong *--> "1" MetaData: "metaData"
+```
+----
+
+
 include::{includedir}footer.adoc[]
\ No newline at end of file