README.md: Recommend git for manual installation

README.md

@@ -77,8 +77,8 @@ flatpak install flathub org.gtk.Gtk3theme.Materia{,-dark,-light}{,-compact}

                                
                                
                                
                            
                                
                                    
                                        
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                                            Run the following commands in the terminal:
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
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                                            ```sh
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
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                                        cd /tmp && wget -qO - https://github.com/nana-4/materia-theme/archive/master.tar.gz | tar xz
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
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                                        cd materia-theme-master
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
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                                        git clone --depth 1 https://github.com/nana-4/materia-theme
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
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                                        cd materia-theme
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
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                                            sudo ./install.sh
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
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                                            ```
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
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