Docsp 44857 improve retrieve (#139)

Author: rustagir

source/fundamentals/aggregation.txt

@@ -183,11 +183,11 @@ month.
 
 The aggregation pipeline contains the following stages:
 
-- A ``$project`` stage to extract the month from the ``last_active``
-  field as a number into the ``month_last_active`` field.
-- A ``$group`` stage to group documents by the ``month_last_active``
-  field and count the number of documents for each month.
-- A ``$sort`` stage to set an ascending sort on the month.
+- ``$project`` stage to extract the month from the ``last_active``
+  field as a number into the ``month_last_active`` field
+- ``$group`` stage to group documents by the ``month_last_active``
+  field and count the number of documents for each month
+- ``$sort`` stage to set an ascending sort on the month
 
 .. io-code-block::
 
@@ -216,12 +216,12 @@ often they appear in users' interests.
 
 The aggregation pipeline contains the following stages:
 
-- An ``$unwind`` stage to separate each array entry in the
-  ``genre_interests`` field into a new document.
-- A ``$group`` stage to group documents by the ``genre_interests``
-  field and count the number of documents for each genre.
-- A ``$sort`` stage to set a descending sort on the genre popularity.
-- A ``$limit`` stage to show only the first three genres.
+- ``$unwind`` stage to separate each array entry in the
+  ``genre_interests`` field into a new document
+- ``$group`` stage to group documents by the ``genre_interests``
+  field and count the number of documents for each genre
+- ``$sort`` stage to set a descending sort on the genre popularity
+- ``$limit`` stage to show only the first three genres
 
 .. io-code-block::
 

source/fundamentals/crud/read-operations/query.txt

@@ -111,6 +111,9 @@ The examples in the following sections query a collection of documents described
    :start-after: begin-sample-docs
    :end-before: end-sample-docs
 
+To learn how to insert this data into a collection, see the
+:ref:`rust-insert-guide` guide.
+
 .. _rust-literal-values:
 
 Literal Values
@@ -240,7 +243,7 @@ divisible by ``3``:
    .. code-block:: rust
 
       my_coll.find(doc! {
-         $and: [
+         "$and": [
             doc! { "price": { "$eq": 5 }},
             doc! { "quantity": { "$gt": 4 }}
          ]

source/fundamentals/crud/read-operations/retrieve.txt

@@ -59,6 +59,9 @@ information about its categorization and unit price:
    :start-after: start-sample
    :end-before: end-sample
 
+To learn how to insert this data into a collection, see the
+:ref:`rust-insert-guide` guide.
+
 .. _rust-retrieve-find:
 
 Find Operations
@@ -349,9 +352,10 @@ Example
 This example shows how to call the ``aggregate()`` method with a
 pipeline that contains the following stages:
 
-- A ``$group`` stage to group documents by the ``category`` field and
-  calculate the average of the ``unit_price`` field by ``category``
-- A ``$sort`` stage to by ``avg_price`` in ascending order
+- ``$group`` stage to calculate the average of the ``unit_price``
+  field for each value of the ``category`` field
+- ``$sort`` stage to order results by ``avg_price`` in ascending
+  order
 
 .. io-code-block::
    :copyable: true