add session8

Makefile

@@ -6,7 +6,8 @@ all: public/index.html \
 	public/session_4.html \
 	public/session_5.html \
 	public/session_6.html \
-	public/session_7.html
+	public/session_7.html \
+	public/session_8.html
 
 public/:
 	mkdir -p public
@@ -53,6 +54,9 @@ public/session_6.html: public/ session_6/session_6.Rmd public/www/style_Rmd.css
 public/session_7.html: public/ session_7/session_7.Rmd public/www/style_Rmd.css
 	Rscript -e 'rmarkdown::render("session_7/session_7.Rmd", output_dir = "public/")'
 
+public/session_8.html: public/ session_8/session_8.Rmd public/www/style_Rmd.css
+	Rscript -e 'rmarkdown::render("session_8/session_8.Rmd", output_dir = "public/")'
+
 ## Test docker in local
 
 test : local/index.html \