Fix examples for filter and transform processors (#2379)

* fix examples filter and transform processors

* remove unecessary docs about escaping strings and backticks

(cherry picked from commit fbe872c)

docs/sources/reference/components/otelcol/otelcol.processor.filter.md

@@ -197,15 +197,15 @@ information.
 
 ### Drop spans which contain a certain span attribute
 
-This example sets the attribute `test` to `pass` if the attribute `test` does not exist.
+This example drops the signals that have the attribute `container.name` set to the value `app_container_1`.
 
 ```alloy
 otelcol.processor.filter "default" {
   error_mode = "ignore"
 
   traces {
     span = [
-      "attributes[\"container.name\"] == \"app_container_1\"",
+      `attributes["container.name"] == "app_container_1"`,
     ]
   }
 
@@ -217,8 +217,6 @@ otelcol.processor.filter "default" {
 }
 ```
 
-Each `"` is [escaped][] with `\"` inside the {{< param "PRODUCT_NAME" >}} syntax string.
-
 ### Drop metrics based on either of two criteria
 
 This example drops metrics which satisfy at least one of two OTTL statements:
@@ -231,8 +229,8 @@ otelcol.processor.filter "default" {
 
   metrics {
     metric = [
-       "name == \"my.metric\" and resource.attributes[\"my_label\"] == \"abc123\"",
-       "type == METRIC_DATA_TYPE_HISTOGRAM",
+       `name == "my.metric" and resource.attributes["my_label"] == "abc123"`,
+       `type == METRIC_DATA_TYPE_HISTOGRAM`,
     ]
   }
 
@@ -244,11 +242,6 @@ otelcol.processor.filter "default" {
 }
 ```
 
-
-Some values in the {{< param "PRODUCT_NAME" >}} syntax string are [escaped][]:
-* `\` is escaped with `\\`
-* `"` is escaped with `\"`
-
 ### Drop non-HTTP spans and sensitive logs
 
 ```alloy
@@ -257,14 +250,14 @@ otelcol.processor.filter "default" {
 
   traces {
     span = [
-      "attributes[\"http.request.method\"] == nil",
+      `attributes["http.request.method"] == nil`,
     ]
   }
 
   logs {
     log_record = [
-      "IsMatch(body, \".*password.*\")",
-      "severity_number < SEVERITY_NUMBER_WARN",
+      `IsMatch(body, ".*password.*")`,
+      `severity_number < SEVERITY_NUMBER_WARN`,
     ]
   }
 
@@ -276,13 +269,6 @@ otelcol.processor.filter "default" {
 }
 ```
 
-Each `"` is [escaped][] with `\"` inside the {{< param "PRODUCT_NAME" >}} syntax string.
-
-
-Some values in the {{< param "PRODUCT_NAME" >}} syntax strings are [escaped][]:
-* `\` is escaped with `\\`
-* `"` is escaped with `\"`
-
 [escaped]: ../../../../get-started/configuration-syntax/expressions/types_and_values/#strings
 
 

docs/sources/reference/components/otelcol/otelcol.processor.transform.md

@@ -304,10 +304,6 @@ otelcol.processor.transform "default" {
 }
 ```
 
-Each statement is enclosed in backticks instead of quotation marks.
-This constitutes a [raw string][raw-strings], and lets us avoid the need to escape
-each `"` with a `\"` inside a [normal][strings] {{< param "PRODUCT_NAME" >}} syntax string.
-
 ### Rename a resource attribute
 
 The are two ways to rename an attribute key.
@@ -354,10 +350,6 @@ otelcol.processor.transform "default" {
 }
 ```
 
-Each statement is enclosed in backticks instead of quotation marks.
-This constitutes a [raw string][raw-strings], and lets us avoid the need to escape
-each `"` with a `\"`, and each `\` with a `\\` inside a [normal][strings] {{< param "PRODUCT_NAME" >}} syntax string.
-
 ### Create an attribute from the contents of a log body
 
 This example sets the attribute `body` to the value of the log body:
@@ -381,10 +373,6 @@ otelcol.processor.transform "default" {
 }
 ```
 
-Each statement is enclosed in backticks instead of quotation marks.
-This constitutes a [raw string][raw-strings], and lets us avoid the need to escape
-each `"` with a `\"` inside a [normal][strings] {{< param "PRODUCT_NAME" >}} syntax string.
-
 ### Combine two attributes
 
 This example sets the attribute `test` to the value of attributes `service.name` and `service.version` combined.
@@ -397,7 +385,7 @@ otelcol.processor.transform "default" {
     context = "resource"
     statements = [
       // The Concat function combines any number of strings, separated by a delimiter.
-      `set(attributes["test"], Concat([attributes["foo"], attributes["bar"]], " "))`,
+      `set(attributes["test"], Concat([attributes["service.name"], attributes["service.version"]], " "))`,
     ]
   }
 
@@ -409,10 +397,6 @@ otelcol.processor.transform "default" {
 }
 ```
 
-Each statement is enclosed in backticks instead of quotation marks.
-This constitutes a [raw string][raw-strings], and lets us avoid the need to escape
-each `"` with a `\"` inside a [normal][strings] {{< param "PRODUCT_NAME" >}} syntax string.
-
 ### Parsing JSON logs
 
 Given the following JSON body:
@@ -461,10 +445,6 @@ otelcol.processor.transform "default" {
 }
 ```
 
-Each statement is enclosed in backticks instead of quotation marks.
-This constitutes a [raw string][raw-strings], and lets us avoid the need to escape
-each `"` with a `\"`, and each `\` with a `\\` inside a [normal][strings] {{< param "PRODUCT_NAME" >}} syntax string.
-
 ### Various transformations of attributes and status codes
 
 The example takes advantage of context efficiency by grouping transformations
@@ -563,10 +543,6 @@ otelcol.exporter.otlp "default" {
 }
 ```
 
-Each statement is enclosed in backticks instead of quotation marks.
-This constitutes a [raw string][raw-strings], and lets us avoid the need to escape
-each `"` with a `\"`, and each `\` with a `\\` inside a [normal][strings] {{< param "PRODUCT_NAME" >}} syntax string.
-
 [strings]: ../../../../get-started/configuration-syntax/expressions/types_and_values/#strings
 [raw-strings]: ../../../../get-started/configuration-syntax/expressions/types_and_values/#raw-strings