Normalize indentation in linux-bootstrap-2 to improve readability

Booting/linux-bootstrap-2.md

@@ -227,9 +227,9 @@ After `hdr` is copied into `boot_params.hdr`, the next step is console initializ
 
 It tries to find the `earlyprintk` option in the command line and if the search was successful, it parses the port address and baud rate of the serial port and initializes the serial port. Value of `earlyprintk` command line option can be one of these:
 
-	* serial,0x3f8,115200
-	* serial,ttyS0,115200
-	* ttyS0,115200
+* serial,0x3f8,115200
+* serial,ttyS0,115200
+* ttyS0,115200
 
 After serial port initialization we can see the first output:
 
@@ -344,10 +344,10 @@ The next step as we can see is cpu validation by `validate_cpu` from [arch/x86/b
 It calls the [`check_cpu`](https://github.com/torvalds/linux/blob/master/arch/x86/boot/cpucheck.c#L102) function and passes cpu level and required cpu level to it and checks that the kernel launches on the right cpu level.
 ```c
 check_cpu(&cpu_level, &req_level, &err_flags);
-	if (cpu_level < req_level) {
+if (cpu_level < req_level) {
     ...
     return -1;
-	}
+}
 ```
 `check_cpu` checks the cpu's flags, presence of [long mode](http://en.wikipedia.org/wiki/Long_mode) in case of x86_64(64-bit) CPU, checks the processor's vendor and makes preparation for certain vendors like turning off SSE+SSE2 for AMD if they are missing, etc.
 
@@ -447,7 +447,7 @@ int query_mca(void)
 It fills  the `ah` register with `0xc0` and calls the `0x15` BIOS interruption. After the interrupt execution it checks  the [carry flag](http://en.wikipedia.org/wiki/Carry_flag) and if it is set to 1, the BIOS doesn't support (**MCA**)[https://en.wikipedia.org/wiki/Micro_Channel_architecture]. If carry flag is set to 0, `ES:BX` will contain a pointer to the system information table, which looks like this:
 
 ```
-Offset	Size	Description	)
+Offset  Size    Description
  00h    WORD    number of bytes following
  02h    BYTE    model (see #00515)
  03h    BYTE    submodel (see #00515)
@@ -507,7 +507,7 @@ First of all it reads the [edd](https://github.com/torvalds/linux/blob/master/Do
 If EDD is enabled, `query_edd` goes over BIOS-supported hard disks and queries EDD information in the following loop:
 
 ```C
-	for (devno = 0x80; devno < 0x80+EDD_MBR_SIG_MAX; devno++) {
+for (devno = 0x80; devno < 0x80+EDD_MBR_SIG_MAX; devno++) {
     if (!get_edd_info(devno, &ei) && boot_params.eddbuf_entries < EDDMAXNR) {
         memcpy(edp, &ei, sizeof ei);
         edp++;