correct minor mistake - list 3 bits instead of 4

Sentence starts with "The next three bits(40, 41, 42, 43)" Should exclude 43.

Booting/linux-bootstrap-2.md

@@ -118,7 +118,7 @@ A segment can be of one of the following types:
 | 15          1    1    1   1 | Code            | Execute/Read, conforming, accessed
 ```
 
-As we can see the first bit(bit 43) is `0` for a _data_ segment and `1` for a _code_ segment. The next three bits(40, 41, 42, 43) are either `EWA`(*E*xpansion *W*ritable *A*ccessible) or CRA(*C*onforming *R*eadable *A*ccessible).
+As we can see the first bit(bit 43) is `0` for a _data_ segment and `1` for a _code_ segment. The next three bits (40, 41, 42) are either `EWA`(*E*xpansion *W*ritable *A*ccessible) or CRA(*C*onforming *R*eadable *A*ccessible).
   * if E(bit 42) is 0, expand up other wise expand down. Read more [here](http://www.sudleyplace.com/dpmione/expanddown.html).
   * if W(bit 41)(for Data Segments) is 1, write access is allowed otherwise not. Note that read access is always allowed on data segments.
   * A(bit 40) - Whether the segment is accessed by processor or not.