v.help: fix typos (vlang#18987)

vlib/v/help/build/build-c.txt

@@ -57,9 +57,9 @@ see also `v help build`.
       Use with `-freestanding`. This specifies the directory to the
       implementation of some basic builtin functions. The list is as follows:
          bare_print(buf &byte, len u64)
-            Print len charecters from the buffer pointed to by buf to stdout.
+            Print len characters from the buffer pointed to by buf to stdout.
          bare_eprint(buf &byte, len u64)
-            Print len charecters from the buffer pointed to by buf to stderr.
+            Print len characters from the buffer pointed to by buf to stderr.
          bare_panic(msg string)
             Print "V panic: " + msg, along with an optional backtrace and/or the V commit hash, and then exit.
          [export: 'malloc']
@@ -309,4 +309,4 @@ see also `v help build`.
       that use relatively few threads.
       It may be decreased, to reduce the memory footprint of programs that launch
       hundreds/thousands of threads, but where each of the threads does not need
-      a big stack.
+      a big stack.

vlib/v/help/build/build-js.txt

@@ -27,9 +27,9 @@ For more general build help, see also `v help build`.
                            (currently default,
                            external source map files not implemented)
 
-   -sourcemap-src-include  Include the orginal V source files into the
+   -sourcemap-src-include  Include the original V source files into the
                            generated source map
    (default false, all files in the source map are currently referenced by
    their absolute system file path)
 
-The supported targets for the JS backend are: ES6 strict
+The supported targets for the JS backend are: ES6 strict

vlib/v/help/build/build-wasm.txt

@@ -15,11 +15,11 @@ For more general build help, see also `v help build`.
    -os <browser|wasi>, -target-os <browser|wasi>
       Change the target WebAssembly execution environment that V compiles for.
 
-      The `wasi` target is the default execution enviroment.
+      The `wasi` target is the default execution environment.
         When targeting WASI, the generated WebAssembly module can be run in a variety of environments that support the WASI specification.
         WASI provides a standardized interface to interact with the host operating system, allowing WebAssembly modules to perform tasks like file I/O, networking, and more.
         The specific version of the WASI specification targeted by V is 'wasi_snapshot_preview1'.
 
       The `browser` target is an experimental environment that compiles for a stripped down builtin, for use in browsers.
         The produced WebAssembly module will have functions exported that are `pub` and inside the `module main`.
-        See `examples/wasm/mandelbrot` for an example.
+        See `examples/wasm/mandelbrot` for an example.

vlib/v/help/build/build.txt

@@ -161,7 +161,7 @@ NB: the build flags are shared with the run command too:
         ... will generate a TAGS file, that emacs can then use to jump
     to the definition of functions used by v itself. For vim:
       ./v -print-v-files cmd/v | ctags -L -
-        ... will generate a simillar tags file, that vi compatible editors can use.
+        ... will generate a similar tags file, that vi compatible editors can use.
     NB: an useful, although not entirely accurate regexp based Universal Ctags options file
       for V is located in `.ctags.d/v.ctags` . If you use https://ctags.io/ , it will be used
       up automatically, or you can specify it explicitly with --options=.ctags.d/v.ctags .
@@ -213,4 +213,4 @@ For Native-specific build flags, use `v help build-native`.
 For WebAssembly-specific build flags, use `v help build-wasm`.
 
 See also:
-   `v help run` for documentation regarding `v run`.
+   `v help run` for documentation regarding `v run`.

vlib/v/help/common/watch.txt

@@ -36,5 +36,5 @@ Options:
                          Example: --after 'rm -rf /tmp/v/'
 
 You can also customise the timeout, after `v watch` will re-start a monitored
-program automatically, even if it was not changed by setting the enviroment
-variable VWATCH_TIMEOUT (in seconds). By default, it is 5 min. (300 seconds).
+program automatically, even if it was not changed by setting the environment
+variable VWATCH_TIMEOUT (in seconds). By default, it is 5 min. (300 seconds).

vlib/v/help/other/bug.txt

@@ -5,4 +5,4 @@ Usage:
 
 Options:
   -v  Enable verbosity while gathering various information
-  -y  Force the submission of the issue, even if an error occured
+  -y  Force the submission of the issue, even if an error occurred

vlib/v/help/other/other.txt

@@ -40,6 +40,6 @@ Other less frequently used commands supported by V include:
                    Mainly useful as a parser bug finder for the V Language Server project.
 
   test-self        Test if V is working properly by running all tests, including the compiler ones.
-                   NB: this can 1-2 minutes to run.
+                   NB: this can take 1-2 minutes to run.
 
   wipe-cache       Remove the V cache folder. Useful for cleaning the cache, and guaranteeing a clean build.