Fixing docs

pkg/yqlib/doc/headers/Boolean Operators.md

@@ -1 +1 @@
-The `or` and `and` operators take two parameters and return a boolean result. These are most commonly used with the `select` operator to filter particular nodes.
+The `or` and `and` operators take two parameters and return a boolean result. `not` flips a boolean from true to false, or vice versa. These are most commonly used with the `select` operator to filter particular nodes.

pkg/yqlib/doc/headers/Document Index.md

@@ -0,0 +1 @@
+Use the `documentIndex` operator to select nodes of a particular document.

pkg/yqlib/doc/headers/Equals.md

@@ -1,5 +1,3 @@
-## Equals Operator
-
 This is a boolean operator that will return ```true``` if the LHS is equal to the RHS and ``false`` otherwise.
 
 ```

pkg/yqlib/doc/headers/File Operators.md

@@ -1,5 +1,7 @@
 File operators are most often used with merge when needing to merge specific files together. Note that when doing this, you will need to use `eval-all` to ensure all yaml documents are loaded into memory before performing the merge (as opposed to `eval` which runs the expression once per document).
 
+## Merging files
+Note the use of eval-all to ensure all documents are loaded into memory.
 ```bash
 yq eval-all 'select(fileIndex == 0) * select(filename == "file2.yaml")' file1.yaml file2.yaml
 ```

pkg/yqlib/doc/headers/Multiply.md

@@ -2,4 +2,11 @@ Like the multiple operator in `jq`, depending on the operands, this multiply ope
 
 Upcoming versions of `yq` will add support for other types of multiplication (numbers, strings).
 
-Note that when merging objects, this operator returns the merged object (not the parent). This will be clearer in the examples below.
+Note that when merging objects, this operator returns the merged object (not the parent). This will be clearer in the examples below.
+
+## Merging files
+Note the use of eval-all to ensure all documents are loaded into memory.
+
+```bash
+yq eval-all 'select(fileIndex == 0) * select(fileIndex == 1)' file1.yaml file2.yaml
+```

pkg/yqlib/doc/headers/Not Operator.md

@@ -1 +0,0 @@
-This is a boolean operator and will return `true` when given a `false` value (including null), and `false` otherwise.

pkg/yqlib/doc/headers/Path Operator.md

@@ -1 +0,0 @@
-The path operator can be used to find the traversal paths of matching nodes in an expression. The path is returned as an array, which if traversed in order will lead to the matching node.

pkg/yqlib/doc/headers/Path.md

@@ -0,0 +1 @@
+The path operator can be used to get the traversal paths of matching nodes in an expression. The path is returned as an array, which if traversed in order will lead to the matching node.

pkg/yqlib/doc/headers/Tag Operator.md

@@ -1 +0,0 @@
-The tag operator can be used to get or set the tag of ndoes (e.g. `!!str`, `!!int`, `!!bool`).

pkg/yqlib/doc/headers/Tag.md

@@ -0,0 +1 @@
+The tag operator can be used to get or set the tag of nodes (e.g. `!!str`, `!!int`, `!!bool`).

pkg/yqlib/doc/headers/Traverse Operator.md

@@ -1 +0,0 @@
-This is the simples (and perhaps most used) operator, it is used to navigate deeply into yaml structurse.

pkg/yqlib/doc/headers/Traverse.md

@@ -0,0 +1 @@
+This is the simplest (and perhaps most used) operator, it is used to navigate deeply into yaml structurse.