fix img links

Makefile

@@ -16,44 +16,44 @@ all: public/index.html \
 public/github-pandoc.css: github-pandoc.css
 	cp github-pandoc.css public/github-pandoc.css
 	cp -R img public/
+	cp *.Rmd public/
 	cp -R www public/
 
 public/index.html: index.md github-pandoc.css
 	pandoc -s -c github-pandoc.css index.md -o public/index.html
 
 public/1_understanding_a_computer.html: 1_understanding_a_computer.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("1_understanding_a_computer.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("1_understanding_a_computer.Rmd")'
 
 public/2_using_the_ifb_cloud.html: 2_using_the_ifb_cloud.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("2_using_the_ifb_cloud.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("2_using_the_ifb_cloud.Rmd")'
 
 public/3_first_steps_in_a_terminal.html: 3_first_steps_in_a_terminal.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("3_first_steps_in_a_terminal.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("3_first_steps_in_a_terminal.Rmd")'
 
 public/4_unix_file_system.html: 4_unix_file_system.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("4_unix_file_system.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("4_unix_file_system.Rmd")'
 
 public/5_users_and_rights.html: 5_users_and_rights.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("5_users_and_rights.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("5_users_and_rights.Rmd")'
 
 public/6_unix_processes.html: 6_unix_processes.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("6_unix_processes.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("6_unix_processes.Rmd")'
 
 public/7_streams_and_pipes.html: 7_streams_and_pipes.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("7_streams_and_pipes.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("7_streams_and_pipes.Rmd")'
 
 public/8_text_manipulation.html: 8_text_manipulation.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("8_text_manipulation.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("8_text_manipulation.Rmd")'
 
 public/9_batch_processing.html: 9_batch_processing.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("9_batch_processing.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("9_batch_processing.Rmd")'
 
 public/10_network_and_ssh.html: 10_network_and_ssh.Rmd public/github-pandoc.css
-	pandoc -s --toc -c github-pandoc.css 10_network_and_ssh.Rmd -o public/10_network_and_ssh.html
-	Rscript -e 'rmarkdown::render("10_network_and_ssh.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("10_network_and_ssh.Rmd")'
 
 public/11_install_system_programs.html: 11_install_system_programs.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("11_install_system_programs.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("11_install_system_programs.Rmd")'
 
 public/12_virtualization.html: 12_virtualization.Rmd public/github-pandoc.css
-	Rscript -e 'rmarkdown::render("12_virtualization.Rmd", output_dir = "public/")'
+	cd public && Rscript -e 'rmarkdown::render("12_virtualization.Rmd")'