remove temp_md and temp_blog vars to improve clarity

.github/workflows/publish.yml

@@ -2,8 +2,6 @@ name: Publish Markdown Files
 env:
   BLOG_REPO: matthewwong525/linked-blog-starter
   PUBLISH_DIR: publish
-  MD_DIR: temp_md
-  BLOG_DIR: temp_blog
 on:
   push:
     branches: [main]
@@ -14,11 +12,11 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v3
       with:
-        path: ${{ env.MD_DIR }}
+        path: temp_md
     - name: Checkout linked blog starter repo
       uses: actions/checkout@v3
       with:
-        path: ${{ env.BLOG_DIR }}
+        path: temp_blog
         repository: ${{ env.BLOG_REPO }}
     - name: Install Rust / cargo
       uses: actions-rs/toolchain@v1
@@ -27,13 +25,13 @@ jobs:
     - name: Install and run obsidian-export
       run: |
         cargo install obsidian-export
-        rm -rf ${{ env.BLOG_DIR }}/common_md && mkdir ${{ env.BLOG_DIR }}/common_md
-        ~/.cargo/bin/obsidian-export ./${{ env.MD_DIR }}/${{ env.PUBLISH_DIR }} ${{ env.BLOG_DIR }}/common_md
+        rm -rf temp_blog/common_md && mkdir temp_blog/common_md
+        ~/.cargo/bin/obsidian-export ./temp_md/${{ env.PUBLISH_DIR }} temp_blog/common_md
     - name: Move blog dir to currDir
       run: |
-        cp -r ${{ env.BLOG_DIR }}/. .
-        rm -rf ${{ env.BLOG_DIR }}
-        rm -rf ${{ env.MD_DIR }}
+        cp -r temp_blog/. .
+        rm -rf temp_blog
+        rm -rf temp_md
     - name: Deploy Vercel
       uses: amondnet/vercel-action@v20
       with: