Minor typos (#1595)

* Remove extra backtick

* Reword explanation of update

* Reword explanation of relative update

* Change "remaple" to "remain"

* Change "clovver" to "clobber"

* Reword explanation of update for comment operators

* Reword explanation of relative update for comment operators

* Change "array" to "expression"

* Change "the golangs" to "Golang's"

* Change "golangs" to "Golang's"

* Change "can durations" to "can add durations"

* Change "array scalars" to "arrays"

* Change "beit" to "be it"

* Fix typo in `eval` tip

* Fix typo in header for `has` operation

* Add space before pipe in `line` operator example

* Fix typos in explanation of deep array merges

* Change "is now used" to "is now used."

* Change "object," to "object."

* Changes "indexes" to "indices"

* Remove extraneous copied text from `..` article

* Reword explanation of `...` operator

* Change "your are" to "you are"

* Add link to `string` operator docs in `select` article

* Change "is a" to "parameter specifies" in `string` operators article

* Change "new line" to "newline"

* Change "golang regex" to "Golang's regex"

* Change "golang" to "Golang"

* Add period

* Remove comma in `subtract` article

* Remove duplicate number subtraction example

* Remove comma in `traverse` operator article

* Clarify use of brackets when `read`ing with special characters

pkg/yqlib/operator_assign_test.go

@@ -196,7 +196,7 @@ var assignOperatorScenarios = []expressionScenario{
 	},
 	{
 		description:           "Update node value that has an anchor",
-		subdescription:        "Anchor will remaple",
+		subdescription:        "Anchor will remain",
 		dontFormatInputForDoc: true,
 		document:              `a: &cool cat`,
 		expression:            `.a = "dog"`,
@@ -230,7 +230,7 @@ var assignOperatorScenarios = []expressionScenario{
 		},
 	},
 	{
-		description:    "Custom types: clovver",
+		description:    "Custom types: clobber",
 		subdescription: "Use the `c` option to clobber custom tags",
 		document:       "a: !cat meow\nb: !dog woof",
 		expression:     `.a =c .b`,