Fix typos in README and add installation guide

README.md

@@ -12,7 +12,7 @@ Arguments:
 
 `-s, --show` - Name of the show
 
-`-n, --season` - Seasons to be renamed (numbers seperated by space or 'all' for all seasons in the directory and sub directories)
+`-n, --season` - Seasons to be renamed (numbers separated by space or 'all' for all seasons in the directory and sub directories)
 
 `-p, --show-path` - Path to the show's directory
 
@@ -20,7 +20,7 @@ Arguments:
 
 `-t, --trust` - Don't prompt before changing file names
 
-`-x, --linux` - Don't replace characters that are ilegal in NTFS
+`-x, --linux` - Don't replace characters that are illegal in NTFS
 
 `-l, --lang` - Language of the episode titles
 
@@ -33,3 +33,28 @@ Arguments:
 - %epname - episode name from thetvdb
 - %season - season number, possible to specify leading 0 like this: %2season (number means how many leading zeros)
 - %episode - episode number, possible to specify leading 0 like this: %3season (number means how many leading zeros)
+
+## Installation
+
+For installation of command line version you'll need:
+   *libcurl-dev* (or your distro's equivalent)
+   some sort of C++ compiler (*clang++* for example)
+   *make*
+When you have all prerequisites installed you need to do this sequence of commands:
+    git clone 'https://gitlab.com/zvon/tv_rename_cpp'
+    cd tv_rename_cpp
+    make
+    sudo make install
+
+For installation of GUI version you'll need:
+   *libcurl-dev* (or your distro's equivalent)
+   some sort of C++ compiler (*clang++* for example)
+   *make*
+   *libgtkmm* (or your distro's equivalent)
+When you have all prerequisites installed you need to do this sequence of commands:
+    git clone 'https://gitlab.com/zvon/tv_rename_cpp'
+    cd tv_rename_cpp
+    make gui
+    sudo make install_gui
+
+You can uninstall both versions by running either `sudo make uninstall` or `sudo make uninstall_gui`