Add instructions with git pull to update repo that was already cloned

README.md

@@ -12,6 +12,11 @@ on.
 versions are usually old, and older versions don't always run reliably when
 interacting with newer versions on the I2P network.
 
+More recent versions can be installed using the ports tree, but doing so is
+pretty unpleasant, from my experience: CVS has to be used, but it's slow and
+unintuitive; also X11 has to be installed in order to be able to build ports,
+which makes no sense on a headless server... \<\/rant\>
+
 Fortunately, compiling the latest version from source on OpenBSD is painless.
 LibreSSL is supported, the official instructions work out of the box, and only a
 small manual intervention is required to make the daemon start at system boot.
@@ -38,16 +43,22 @@ needed as it does not come with OpenBSD's base system:
 
     $ doas pkg_add boost cmake git
 
-Next, clone their git repository:
+Next, clone their git repository if it was not already cloned before:
 
-    $ cd /a/folder/of/your/choice/where/to/clone/the/repo
+    $ cd /some/directory
     $ git clone https://github.com/PurpleI2P/i2pd.git
+    $ cd i2pd
+
+Or if the repository was already cloned before and you want to update it:
+
+    $ cd /some/directory/i2pd
+    $ git pull
 
 Then, generate the makefile and compile the source. You can also
 [pass options to cmake](https://i2pd.readthedocs.io/en/latest/devs/building/unix/#cmake-options)
 to customize your makefile:
 
-    $ cd i2pd/build
+    $ cd build
     $ cmake .
     $ make
 
@@ -93,17 +104,22 @@ version and creates the file automatically if the version is 7.1 or newer.
 This new login class will be used by the user `_i2pd` created in the following
 steps.
 
-Next, clone this git repository:
+Next, clone this git repository if it wasn't cloned before:
 
-    $ cd /a/folder/of/your/choice/where/to/clone/the/repo
+    $ cd /any/directory
     $ git clone https://gitlab.com/alpou/i2pd-rc-openbsd.git
+    $ cd i2pd-rc-openbsd
+
+Or if the repository was already cloned before and you want to update it:
+
+    $ cd /any/directory/i2pd-rc-openbsd
+    $ git pull
 
 Then, simply run the makefile. This will create a dedicated user and group to run
 I2Pd, both called `_i2pd`, and give them ownership of the binaries compiled
 previously. The login class described above will also be created if you are using
 OpenBSD 7.1 or newer, and the init script will be copied in `/etc/rc.d`.
 
-    $ cd i2pd-rc-openbsd
     $ doas make install
 
 The final step is to enable the service to make it start at boot time and then to