Fixing previous commit

ImageColorizerColab.ipynb

@@ -116,7 +116,7 @@
    },
    "outputs": [],
    "source": [
-    "!pip install -e ."
+    "!pip install -r requirements.txt"
    ]
   },
   {

VideoColorizerColab.ipynb

@@ -119,7 +119,7 @@
    },
    "outputs": [],
    "source": [
-    "!pip install -e ."
+    "!pip install -r requirements.txt"
    ]
   },
   {

requirements.txt

@@ -1,6 +1,6 @@
-python=3.7
-fastai=1.0.51
-tensorboardX=1.6
-ffmpeg=4.11
-ffmpeg-python=0.1.17
+python==3.7
+fastai==1.0.51
+tensorboardX==1.6
+ffmpeg==4.11
+ffmpeg-python==0.1.17
 youtube-dl>=2019.4.17