Makefile: Add symlink targets to help

Also capitalize the first letter of each help line while I'm here.

Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I595265d53a5ecfeb5989075dd4ce23dbdf366c00
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83125
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
diff --git a/Makefile b/Makefile
index 2dddaab..bc6fabc 100644
--- a/Makefile
+++ b/Makefile
@@ -94,10 +94,15 @@
 	@echo  '  sphinx                - Build sphinx documentation for coreboot'
 	@echo  '  sphinx-lint           - Build sphinx documentation for coreboot with warnings as errors'
 	@echo  '  filelist              - Show files used in current build'
-	@echo  '  printall              - print makefile info for debugging'
-	@echo  '  gitconfig             - set up git to submit patches to coreboot'
-	@echo  '  ctags / ctags-project - make ctags file for all of coreboot or current board'
-	@echo  '  cscope / cscope-project - make cscope.out file for coreboot or current board'
+	@echo  '  printall              - Print makefile info for debugging'
+	@echo  '  gitconfig             - Set up git to submit patches to coreboot'
+	@echo  '  ctags / ctags-project - Make ctags file for all of coreboot or current board'
+	@echo  '  cscope / cscope-project - Make cscope.out file for coreboot or current board'
+	@echo
+	@echo  '*** site-local related targets ***'
+	@echo  '  symlink               - Create symbolic links from site-local into coreboot tree'
+	@echo  '  clean-symlink         - Remove symbolic links created by "make symlink"'
+	@echo  '  cleanall-symlink      - Remove all symbolic links in the coreboot tree'
 	@echo
 
 # This include must come _before_ the pattern rules below!