Grammar fixes (#1877)

pkg/yqlib/data_tree_navigator.go

@@ -7,7 +7,7 @@ import (
 )
 
 type DataTreeNavigator interface {
-	// given the context and a expressionNode,
+	// given the context and an expressionNode,
 	// this will process the against the given expressionNode and return
 	// a new context of matching candidates
 	GetMatchingNodes(context Context, expressionNode *ExpressionNode) (Context, error)

pkg/yqlib/doc/operators/boolean-operators.md

@@ -4,7 +4,7 @@ The `or` and `and` operators take two parameters and return a boolean result.
 
 `not` flips a boolean from true to false, or vice versa. 
 
-`any` will return `true` if there are any `true` values in a array sequence, and `all` will return true if _all_ elements in an array are true.
+`any` will return `true` if there are any `true` values in an array sequence, and `all` will return true if _all_ elements in an array are true.
 
 `any_c(condition)` and `all_c(condition)` are like `any` and `all` but they take a condition expression that is used against each element to determine if it's `true`. Note: in `jq` you can simply pass a condition to `any` or `all` and it simply works - `yq` isn't that clever..yet
 

pkg/yqlib/doc/operators/headers/boolean-operators.md

@@ -4,7 +4,7 @@ The `or` and `and` operators take two parameters and return a boolean result.
 
 `not` flips a boolean from true to false, or vice versa. 
 
-`any` will return `true` if there are any `true` values in a array sequence, and `all` will return true if _all_ elements in an array are true.
+`any` will return `true` if there are any `true` values in an array sequence, and `all` will return true if _all_ elements in an array are true.
 
 `any_c(condition)` and `all_c(condition)` are like `any` and `all` but they take a condition expression that is used against each element to determine if it's `true`. Note: in `jq` you can simply pass a condition to `any` or `all` and it simply works - `yq` isn't that clever..yet
 

pkg/yqlib/doc/operators/multiply-merge.md

@@ -519,7 +519,7 @@ will output
 some: thing
 ```
 
-## Merging an null with an array
+## Merging a null with an array
 Running
 ```bash
 yq --null-input 'null * ["some"]'

pkg/yqlib/operator_multiply_test.go

@@ -594,7 +594,7 @@ var multiplyOperatorScenarios = []expressionScenario{
 		},
 	},
 	{
-		description: "Merging an null with an array",
+		description: "Merging a null with an array",
 		expression:  `null * ["some"]`,
 		expected: []string{
 			"D0, P[], (!!seq)::- some\n",

pkg/yqlib/operator_to_number.go

@@ -7,7 +7,7 @@ import (
 )
 
 func tryConvertToNumber(value string) (string, bool) {
-	// try a int first
+	// try an int first
 	_, _, err := parseInt64(value)
 	if err == nil {
 		return "!!int", true