docs: fix a few grammar and formatting issues

docs/markdown/Build-options.md

@@ -155,7 +155,7 @@ option('o5', type: 'boolean', deprecated: {'enabled': 'true', 'disabled': 'false
 ```
 
 Since *0.63.0* the `deprecated` keyword argument can take the name of a new option
-that replace this option. In that case, setting a value on the deprecated option
+that replaces this option. In that case, setting a value on the deprecated option
 will set the value on both the old and new names, assuming they accept the same
 values.
 

docs/markdown/Configuration.md

@@ -87,7 +87,7 @@ endif
 ## Configuring without an input file
 
 If the input file is not defined then Meson will generate a header
-file all the entries in the configuration data object. The
+file with all the entries in the configuration data object. The
 replacements are the same as when generating `#mesondefine` entries:
 
 ```meson
@@ -116,7 +116,7 @@ Will produce:
 ## Dealing with file encodings
 
 The default Meson file encoding to configure files is utf-8. If you
-need to configure a file that is not utf-8 encoded the encoding
+need to configure a file that is not utf-8 encoded the `encoding`
 keyword will allow you to specify which file encoding to use. It is
 however strongly advised to convert your non utf-8 file to utf-8
 whenever possible. Supported file encodings are those of python3, see

docs/markdown/Release-notes-for-0.63.0.md

@@ -47,7 +47,7 @@ ptr_size = meson.get_compiler('d').sizeof('void*')
 ## Deprecate an option and replace it with a new one
 
 The `deprecated` keyword argument can now take the name of a new option
-that replace this option. In that case, setting a value on the deprecated option
+that replaces this option. In that case, setting a value on the deprecated option
 will set the value on both the old and new names, assuming they accept the same
 values.