diff --git a/docs/html/_sources/airflow-intro.md.txt b/docs/html/_sources/airflow-intro.md.txt
index 770aed2..d0991c4 100644
--- a/docs/html/_sources/airflow-intro.md.txt
+++ b/docs/html/_sources/airflow-intro.md.txt
@@ -125,7 +125,7 @@ run_this = PythonOperator(
 
 ### Airflow
 - Airbnb data team
-- Open-sourced mud 2015
+- Open-sourced mid 2015
 - Apache incubator mid-2016
 - ETL pipelines
 
@@ -151,4 +151,4 @@ run_this = PythonOperator(
 | Task are defined by`dag_id` defined by user name | Task are defined by task name and parameters                                   |
 | Task retries based on definitions                | Decide if a task is done via input/output                                      |
 | Task code to the worker                          | Workers started by Python file where the tasks are defined                     |
-| Centralized scheduler (Celery spins up workers)  | Centralized scheduler in charge of deduplication sending tasks (Tornado based) |
\ No newline at end of file
+| Centralized scheduler (Celery spins up workers)  | Centralized scheduler in charge of deduplication sending tasks (Tornado based) |