diff --git a/README.md b/README.md
index 4c74900..5b397fa 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 <details><summary>Query</summary>
 
-```
+```bash
 db.movies.find({ "genres": "Thriller" }).count()
 ```
 
@@ -12,7 +12,7 @@ db.movies.find({ "genres": "Thriller" }).count()
 
 <details><summary>Result</summary>
 
-```
+```bash
 2658
 ```
 </details>
@@ -21,14 +21,14 @@ db.movies.find({ "genres": "Thriller" }).count()
 
 <details><summary>Query</summary>
 
-```
+```bash
 db.movies.find({ "title": { "$regex": /ghost/i } })
 ```
 </details>
 
 <details><summary>Result</summary>
 
-```
+```bash
 [
   {
     _id: ObjectId("573a1392f29313caabcda826"),
@@ -84,14 +84,14 @@ ain Stone. At first things look good, Stone sees Merriam as a younger version of
 
 <details><summary>Query</summary>
 
-```
+```bash
 db.movies.find({ "title": { "$regex": /ghost/i }, "year": { "$gt": 2013 } })
 ```
 </details>
 
 <details><summary>Result</summary>
 
-```
+```bash
 [
   {
     _id: ObjectId("573a13ddf29313caabdb3f4b"),
@@ -138,7 +138,7 @@ sten that a whale killed his beautiful Annabel Lee, but even he doesn't quite re
 
 <details><summary>Query</summary>
 
-```
+```bash
 db.movies.aggregate([
    { "$sort": { "awards.wins": -1 } },
    { "$limit": 1 }
@@ -148,7 +148,7 @@ db.movies.aggregate([
 
 <details><summary>Result</summary>
 
-```
+```bash
 [
   {
     _id: ObjectId("573a13d5f29313caabd9cae7"),
@@ -203,7 +203,7 @@ ity. In the twelfth year of his unforgettable odyssey, Solomon's chance meeting
 
 <details><summary>Query</summary>
 
-```
+```bash
 db.movies.aggregate([
     { "$match": { "runtime": { "$gt": 120 }, "imdb.rating": { "$lt": 2.0 }}},
     { "$sort": { "year": 1 } },
@@ -215,7 +215,7 @@ db.movies.aggregate([
 
 <details><summary>Result</summary>
 
-```
+```bash
 [
   {
     _id: ObjectId("573a13dbf29313caabdaf3c6"),
@@ -271,7 +271,7 @@ l landlord. The son flees the village and travels to Mumbai to make a life, but
 
 <details><summary>Query</summary>
 
-```
+```bash
 db.movies.aggregate([
     { "$match": { "runtime": { "$gt": 120 }, "imdb.rating": { "$lt": 2.0 } } },
     { "$sort": { "year": 1 } },
@@ -289,7 +289,7 @@ db.movies.aggregate([
 
 <details><summary>Result</summary>
 
-```
+```bash
 [
   {
     _id: ObjectId("573a13dbf29313caabdaf3c6"),
@@ -346,7 +346,7 @@ l landlord. The son flees the village and travels to Mumbai to make a life, but
 
 <details><summary>Query</summary>
 
-```
+```bash
 db.movies.aggregate([
     { "$unwind": "$countries" },
     {
@@ -373,9 +373,9 @@ db.movies.aggregate([
 
 <details><summary>Result</summary>
 
-It's very long. Here's part of the 2nd entry:
+It's very long. Here's part of the 2nd document:
 
-```
+```bash
 ...
       'La Sapienza',
       'The New Girlfriend',
@@ -503,7 +503,7 @@ It's very long. Here's part of the 2nd entry:
 ### BONUS/ Trouver les cinémas aux alentours (5km maxi) de New York (x = -73.983487 et y = 40.76078)
 <details><summary>Query</summary>
 
-```
+```bash
 db.theaters.createIndex({ "location.geo": "2dsphere" })
 
 db.theaters.aggregate([
@@ -523,7 +523,7 @@ db.theaters.aggregate([
 
 <details><summary>Result</summary>
 
-```
+```bash
 [
   {
     _id: ObjectId("59a47287cfa9a3a73e51e8e2"),