feat(makefile): add open option for doc

* add open option for doc command
* document this flag in readme

Signed-off-by: Anhad Singh <[email protected]>

Author: Andy-Python-Programmer

Makefile

@@ -41,6 +41,8 @@ qemu: $(KERNEL_TARGET) $(USERLAND_TARGET)
 
 .PHONY: doc
 doc:
-	rm -rf target/doc
 	cd src && cargo doc --package aero_kernel --release --target-dir=../target/doc/
 	cp web/index.html target/doc/index.html
+ifeq ($(open),yes)
+	xdg-open target/doc/index.html
+endif

README.md

@@ -75,9 +75,11 @@ $ cd aero
 make distro-image
 make qemu
 
-# To build documentation run the following command. The documentation will be outputed to the `target/doc` directory.
-make doc
-# The documentation will be available in the `target/doc` directory.
+# To build documentation run the following command. The documentation will be outputed
+# to the `target/doc` directory.
+#
+# Optionally you can pass `open=yes` to open the documentation in the default browser.
+make doc open=yes
 ```
 
 # Contributing

web/index.html

@@ -1 +1 @@
-<meta http-equiv='refresh' content='0; URL=./x86_64-aero_os/doc/aero_kernel/index.html' />
+<meta http-equiv='refresh' content='0; URL=./x86_64-unknown-none/doc/aero_kernel/index.html' />