update install method

INSTALL.md

@@ -6,12 +6,16 @@ The project can be installed using the `.whl` in releases section using your pyt
 
 ## From source
 
-### 1
-
 One way to install the project from source is by building it using the build system. Install the dependencies with:
 
 ```
-pip install build setuptools rich==12.4.4
+pip install -r requirements.txt
+```
+
+And using your distro's respective package manager, install texlive or any other LaTeX distributions. In Fedora, CentOS, and RHEL:
+
+```
+sudo dnf/rpm-ostree/yum install texlive-scheme-full
 ```
 
 Then inside the project dir, to build the `.whl` file do:
@@ -27,16 +31,3 @@ python setup.py build
 ```
 
 And finally if the former was used, the resulting `.whl` file under `dists/` dir can be installed via `pip`.
-
-### 2
-Since the current version of simtex, is under alpha (v0.1.0a), there is no package and install script yet. Clone the repository:
-
-```
-git clone -b devel https://github.com/iaacornus/simtex
-```
-
-Install the dependencies, currently, the python dependency used is only `rich==12.4.4` which can be installed via `pip`. If you plan to use `-b` and `-B` command, you need a tex compiler, by default the program uses `PdfLaTeX`, which can be installed with `texlive` or other LaTeX distribution from your distro.
-
-Then create the config directory: `mkdir $HOME/.config/simtex && cp ./simtex/examples/config/code_conf.txt ./simtex/examples/config/simtex.json -t $HOME/.config/simtex/`.
-
-And place the source code in your `$PYTHONPATH`, since the command that is used is `python -m src.cli [COMMANDS] [OPTIONS]`, therefore, the source code must be in `$PYTHONPATH`. Then finally, you can add an alias to your `$HOME/.bashrc` or shell config file, with `simtex="python -m src.cli`.