reduce conflicts

Signed-off-by: kgao <kevin.leo.gao@gmail.com>

Author: kgao

_learn/02_introduction_to_econml.md

@@ -10,5 +10,3 @@ image: assets/econml-logo.png
 image-alt: Econml | Automated Learning and Intelligence for Causation and Economics
 link: https://econml.azurewebsites.net/
 ---
-
-

content/quick_install.md

@@ -9,3 +9,4 @@ pip install econml
 ```shell
 pip install causal-learn
 ```
+

install.md

@@ -103,8 +103,6 @@ We use GitHub Actions to build and publish the package and documentation.  To cr
 3. Manually run the publish_docs.yml workflow to build and publish the documentation.
 4. Under https://github.com/py-why/EconML/releases, create a new release with a corresponding tag, and update the release notes.
 
-
-
 <br/>
 <br/>
 <br/>
@@ -131,4 +129,4 @@ Causal-learn needs the following packages to be installed beforehand:
 
 To use causal-learn, we could install it using pip:
 
-    > pip install causal-learn
+    > pip install causal-learn