update README

README.md

@@ -70,9 +70,9 @@ For Unix-like systems, especially Debian-based systems,
 e.g. Ubuntu, Debian or Linux Mint, you can build the binary like this:
 
 ```bash
-    sudo apt-get install build-essential autoconf libtool libssl-dev
-    ./configure && make
-    sudo make install
+sudo apt-get install build-essential autoconf libtool libssl-dev
+./configure && make
+sudo make install
 ```
 
 ### FreeBSD
@@ -133,18 +133,18 @@ If you are using MinGW (msys), please download OpenSSL source tarball
 to the home directory of msys, and build it like this (may take a few minutes):
 
 ```bash
-    tar zxf openssl-1.0.1e.tar.gz
-    cd openssl-1.0.1e
-    ./config --prefix="$HOME/prebuilt" --openssldir="$HOME/prebuilt/openssl"
-    make && make install
+tar zxf openssl-1.0.1e.tar.gz
+cd openssl-1.0.1e
+./config --prefix="$HOME/prebuilt" --openssldir="$HOME/prebuilt/openssl"
+make && make install
 ```
 
 Then, build the binary using the commands below, and all `.exe` files 
 will be built at `$HOME/ss/bin`:
 
 ```bash
-    ./configure --prefix="$HOME/ss" --with-openssl="$HOME/prebuilt"
-    make && make install
+./configure --prefix="$HOME/ss" --with-openssl="$HOME/prebuilt"
+make && make install
 ```
 
 Usage