README: Fix typos

Author: jwilk

README.md

@@ -57,7 +57,7 @@ Features
  * Very trivial module loading support (**no** automatic dependency
    resolution).
 
-When compiled on a x86_64 system with the default `-Og` compiler flags,
+When compiled on an x86_64 system with the default `-Og` compiler flags,
 statically linked against dietlibc 0.33~cvs20120325-6, the binary
 stripped and the resulting initramfs (without any modules added)
 compressed with `gzip -9`, the images produced are between 9 kiB and
@@ -328,15 +328,15 @@ many buffers that the amount of RAM used is a concern just yet, even
 for small systems), so that no real flexibility is sacrificed.
 
 None of this is extremely performance-critical (it is going to be quite
-fast regardless, because very little is done compared to a even just
+fast regardless, because very little is done compared to even just
 running a shell), so no algorithm is optimized for speed directly. For
 example, the mount option parser table is somewhat compressed to reduce
 the code size (negation and recursive variants of mount options are not
 repeated), to the point where further reduction would likely sacrifice
 the readability of the code. Execution speed is achieved by doing very
 little, not by micro-optimizing algorithms.
 
-Some times it is necessary to reimplement certain libc functios because
+Sometimes it is necessary to reimplement certain libc functions because
 using the libc variants increase the image size too much. For example,
 using `inet_ntoa` and `inet_aton` (to convert between ASCII to binary
 representations of IP addresses) from the musl C library will cause
@@ -371,7 +371,7 @@ be interesting regardless:
    file systems.
 
 Note that the goal is to keep the `initrd.img` size smaller than 16 KiB
-on all plattforms, so a cutoff of 15 KiB is used on x86_64, to leave
+on all platforms, so a cutoff of 15 KiB is used on x86_64, to leave
 room for different assembly code sizes etc., at least when used in a
 minimal configuration. Therefore, some features (such as `UUID=` and
 NFSv4 support) are compile-time optional.