Documentation fixes

Author: 0237h

substreams_firehose/__init__.py

@@ -302,6 +302,9 @@ def ethereum_processor(data: Message) -> Iterator[dict]:
 if you're interested ;)*
 
 // TODO: talk about turning block processors into substreams
+//          -> Add section 'Using the right endpoints for the right job'
+//          -> Take the same previous example and query substreams for transactions
+//          -> Compare performances ?
 
 # Using substreams_firehose as a library
 

substreams_firehose/utils.py

@@ -31,7 +31,7 @@ def filter_keys(input_: dict, keys_filter: dict) -> dict:
 
     Examples:
     #### Input
-    ```json
+    ```python
     {
         'a': 'value',
         'b': {
@@ -52,7 +52,7 @@ def filter_keys(input_: dict, keys_filter: dict) -> dict:
     }
     ```
     #### Filter
-    ```json
+    ```python
     {
         'a': True,
         'b': {
@@ -68,7 +68,7 @@ def filter_keys(input_: dict, keys_filter: dict) -> dict:
     }
     ```
     #### Output
-    ```json
+    ```python
     {
         'a': 'value',
         'b': {