Update readme

README.org

@@ -1,26 +1,7 @@
 * 0x0 uploader
 This is a very lightweight front-end to the [[http://0x0.st][0x0 pastebin service]] for slightly easier
 command line use.
-** Installation
-*** pipx
-#+begin_src bash
-pipx install git+https://tildegit.org/grym/oxo@master  # or @tag-of-your-choice
-#+end_src
-*** pip
-#+begin_src bash
-  python3 -m venv oxovenv
-  oxovenv/bin/pip install git+https://tildegit.org/grym/oxo@master  # or @tag-of-your-choice
-  ln -s oxovenv/bin/oxo ${HOME}/.local/bin # optional.
-#+end_src
-*** development
-#+begin_src bash
-  git clone https://tildegit.org/grym/oxo
-  cd oxo
-  make install
-#+end_src
-
 ** Use
-Each of the three endpoints supported by 0x0 has an associated subcommand.
 #+begin_src bash :results output replace :tangle no
 oxo --help
 #+end_src
@@ -48,3 +29,27 @@ oxo --help
 ╰──────────────────────────────────────────────────────────────────────────────╯
 
 #+end_example
+** Installation
+*** pipx
+[[https://pypa.github.io/pipx/][pipx]] automates the creation  of isolated runtimes for python CLI utilities like
+=oxo=.  Once =pipx= is installed, install =oxo= like so, and it'll be on your
+=$PATH=
+#+begin_src bash
+pipx install git+https://tildegit.org/grym/oxo@master  # or @tag-of-your-choice
+#+end_src
+*** pip + venv
+If you'd prefer to create or manage your own isolated runtime for =oxo=, create
+a venv and install =oxo= into it:
+#+begin_src bash
+  python3 -m venv oxovenv #or wherever you want the venv to go
+  oxovenv/bin/pip install git+https://tildegit.org/grym/oxo@master  # or @tag-of-your-choice
+  ln -s oxovenv/bin/oxo ${HOME}/.local/bin # optionally add to here, or anywhere else on your $PATH
+#+end_src
+*** development
+If you'd like to set up a development install to edit oxo on your own (to
+prepare a PR, for example):
+#+begin_src bash
+  git clone https://tildegit.org/grym/oxo
+  cd oxo
+  make install
+#+end_src