Add install-manpage target in makefile and update readme (#165)

* Add install-manpage target in makefile and update readme

* Restructure man directory to make it work properly

* Update debian/apx.install to reflect manpage changes

* Update readme with manpage installation instructionsx

* Update README.md

---------

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

Makefile

@@ -11,11 +11,16 @@ install:
 	install -Dm755 ${BINARY_NAME} ${DESTDIR}${PREFIX}/bin/${BINARY_NAME}
 	mkdir -p ${DESTDIR}/etc/apx
 	sed -i 's|/usr/share/apx/distrobox|${PREFIX}/share/apx/distrobox|g' config/config.json
-	install -Dm644 config/config.json ${DESTDIR}/etc/apx/config.json
+	sudo install -Dm644 config/config.json ${DESTDIR}/etc/apx/config.json
 	mkdir -p ${DESTDIR}${PREFIX}/share/apx
 	sh distrobox/install --prefix ${DESTDIR}${PREFIX}/share/apx
 	mv ${DESTDIR}${PREFIX}/share/apx/bin/distrobox* ${DESTDIR}${PREFIX}/share/apx/.
 
+install-manpages:
+	mkdir -p ${DESTDIR}${PREFIX}/share/man/man1
+	cp -r man/* ${DESTDIR}${PREFIX}/share/man/.
+	chmod 644 ${DESTDIR}${PREFIX}/share/man/man1/*
+
 clean:
 	rm -f ${BINARY_NAME}
 	go clean

README.md

@@ -74,9 +74,8 @@ Apx has been designed in a distro-agnostic manner, allowing it to work with any
 
 - You must have `go` installed from your distribution's native repositories to compile `apx`.
 - You must have `git` installed to clone the repository.
-- You must have `curl` installed for the Distrobox script.
 - You must have either `podman` or `docker` installed.
-- You must have `make` installed for the installation
+- You must have `make` installed for the installation.
 
 ### Procedure
 
@@ -93,18 +92,27 @@ cd apx
 make build
 ```
 
-- Install apx using `make install`:-
+- Install apx using `make`:-
 
 ``` bash
-make install
+sudo make install
 ```
+
+- Install the apx manpages:-
+
+``` bash
+sudo make install-manpages
+```
+
 The prefix or installation destination can be changed using `PREFIX` and `DESTDIR` respectively:
 
 To install apx into `~/.local` for example:
 ``` bash
 make install PREFIX=$HOME/.local
+make install-manpages PREFIX=$HOME/.local
 ```
 or into a seperate root:
 ``` bash
 make install DESTDIR=$HOME/altroot
+make install-manpages DESTDIR=$HOME/altroot
 ```

debian/apx.install

@@ -1,4 +1,4 @@
 config/config.json /etc/apx/
-man/apx.1 /usr/share/man/man1
-man/es/apx.1 /usr/share/man/es/man1
-man/sv/apx.1 /usr/share/man/sv/man1
+man/man1/apx.1 /usr/share/man/man1
+man/es/man1/apx.1 /usr/share/man/es/man1
+man/sv/man1/apx.1 /usr/share/man/sv/man1