chore: fix readme

README.md

@@ -68,8 +68,6 @@ Jina lets you build search engines for any kind of data, including [text](https:
 
 ## Installation
 
-#### via `pip`
-
 ```sh
 pip install -U jina
 ```
@@ -183,22 +181,22 @@ Developing Jina app often means writing YAML configs. We provide a [JSON Schema]
 ### Examples ([View all](https://github.com/jina-ai/examples))
 
 #### [📄 NLP Semantic Wikipedia Search with Transformers and DistilBERT](https://github.com/jina-ai/examples/tree/master/wikipedia-sentences)
-Brand new to neural search? See a simple text-search example to understand how Jina works 
+    Brand new to neural search? See a simple text-search example to understand how Jina works 
 
 #### [📄 Add Incremental Indexing to Wikipedia Search](https://github.com/jina-ai/examples/tree/master/wikipedia-sentences-incremental)
-Index more effectively by adding incremental indexing to your Wikipedia search 
+    Index more effectively by adding incremental indexing to your Wikipedia search 
 
 #### [📄 Search Lyrics with Transformers and PyTorch](https://github.com/jina-ai/examples/tree/master/multires-lyrics-search)
-Get a better understanding of chunks by searching a lyrics database. Now with shiny front-end! 
+    Get a better understanding of chunks by searching a lyrics database. Now with shiny front-end! 
 
 #### [🖼️ Google's Big Transfer Model in (Poké-)Production](https://github.com/jina-ai/examples/tree/master/pokedex-with-bit)
-Use SOTA visual representation for searching Pokémon!
+    Use SOTA visual representation for searching Pokémon!
 
 #### [🎧 Search YouTube audio data with Vggish](https://github.com/jina-ai/examples/tree/master/audio-search)
-A demo of neural search for audio data based Vggish model. 
+    A demo of neural search for audio data based Vggish model. 
 
 #### [🎞️ Search Tumblr GIFs with KerasEncoder](https://github.com/jina-ai/examples/tree/master/tumblr-gif-search)
-Use prefetching and sharding to improve the performance of your index and query Flow when searching animated GIFs.
+    Use prefetching and sharding to improve the performance of your index and query Flow when searching animated GIFs.
 
 Check our [examples repo](https://github.com/jina-ai/examples) for advanced and community-submitted examples.