Updating docs

pkg/yqlib/doc/operators/headers/Main.md

@@ -5,7 +5,7 @@
 
 yq [eval/eval-all] [expression] files..
 
-eval/e  - Apply the expression to each document in each yaml file in sequence
+eval/e  - (default) Apply the expression to each document in each yaml file in sequence
 
 eval-all/ea - Loads all yaml documents of all yaml files and runs expression once
 
@@ -18,32 +18,33 @@ This documentation is also available at https://mikefarah.gitbook.io/yq/
 
 ## Read a value:
 ```bash
-yq e '.a.b[0].c' file.yaml
+yq '.a.b[0].c' file.yaml
 ```
 
 ## Pipe from STDIN:
 ```bash
-cat file.yaml | yq e '.a.b[0].c' -
+cat file.yaml | yq '.a.b[0].c'
 ```
 
 ## Update a yaml file, inplace
 ```bash
-yq e -i '.a.b[0].c = "cool"' file.yaml
+yq -i '.a.b[0].c = "cool"' file.yaml
 ```
 
 ## Update using environment variables
 ```bash
-NAME=mike yq e -i '.a.b[0].c = strenv(NAME)' file.yaml
+NAME=mike yq -i '.a.b[0].c = strenv(NAME)' file.yaml
 ```
 
 ## Merge multiple files
 ```
 yq ea '. as $item ireduce ({}; . * $item )' path/to/*.yml
 ```
+Note the use of `ea` to evaluate all files at once (instead of in sequence.)
 
 ## Multiple updates to a yaml file
 ```bash
-yq e -i '
+yq -i '
   .a.b[0].c = "cool" |
   .x.y.z = "foobar" |
   .person.name = strenv(NAME)