fix typos and grammars in Build-options.md
diff --git a/docs/markdown/Build-options.md b/docs/markdown/Build-options.md
index 93e3326..56b2693 100644
--- a/docs/markdown/Build-options.md
+++ b/docs/markdown/Build-options.md
@@ -6,7 +6,7 @@
Most non-trivial builds require user-settable options. As an example a
program may have two different data backends that are selectable at
-build time. Meson provides for this by having a option definition
+build time. Meson provides for this by having an option definition
file. Its name is `meson.options` and it is placed at the root of
your source tree. For versions of meson before 1.1, this file was called
`meson_options.txt`.
@@ -46,7 +46,7 @@
### Combos
A combo allows any one of the values in the `choices` parameter to be
-selected. If no default value is set then the first value will be the
+selected. If no default value is set then the first value will be the
default.
### Integers
@@ -60,7 +60,7 @@
### Arrays
Arrays represent an array of strings. By default the array can contain
-arbitrary strings. To limit the possible values that can used set the
+arbitrary strings. To limit the possible values that can be used set the
`choices` parameter. Meson will then only allow the value array to
contain strings that are in the given list. The array may be
empty. The `value` parameter specifies the default value of the option
@@ -75,7 +75,7 @@
### Features
A `feature` option has three states: `enabled`, `disabled` or `auto`.
-It is intended to be passed as value for the `required` keyword
+It is intended to be passed as a value for the `required` keyword
argument of most functions. Currently supported in
[[add_languages]],
[[compiler.find_library]],
